{
  "manageEntity": {
    "action": "Update",
    "entityId": "791523330",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragsllrzkm62iyoeyewelsvg6cfj35dtkrxo254uevaugvjhyjd6hq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1915540650},{\"type\":\"playlist\",\"playlist_id\":989887315},{\"type\":\"playlist\",\"playlist_id\":108456277}]}}}",
    "nonce": "0x03567f3ad6b7e37438a2519f5f7ae2a7e9a8141a269506a1117a632d8374d3ad",
    "signature": "0xd2907d4b9e5228064835101c8b4911c82445c8e978799baf86ed15d470f9c12b1750cd77ab7f78b7c23af55028d47eee56faaac60ba26f5898c82bca8eba1a9a1c",
    "signer": "0xC30AC2fB3d662DdB28d2d773D62C6dB967b17562",
    "userId": "791523330"
  }
}