{
  "manageEntity": {
    "action": "Update",
    "entityId": "223652420",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xffe099f90df4fafb161f013886e5f3f8f4a34aa537fc79a3df366f8c86d5e6fd",
    "signature": "0x8e9fb06638a62f6c5afd20119fb6999489fb3db2bd48f9f2774ef9b08bd5441c44f07a792f013d6d0e08021b29d714c02512d62c6ed5a07e4f1095f66995393b1b",
    "signer": "0xCaFbadfD1CD8f17092A6d143391eA3E2C0234C58",
    "userId": "223652420"
  }
}