{
  "manageEntity": {
    "action": "Update",
    "entityId": "110070561",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7d8b49f15272105a30d51ccd5aaf2c5e590972e4b770f378a9b89116528c2bef",
    "signature": "0xfcea2f2cb98236658e33d2e0b3634bd07fbb0597d1a7d5c1d7562e440450f6cd2f24307a8288c3a6d4da8efbda539ba424d799f544deccd62046f951e998c4151b",
    "signer": "0x4e45ff770C7F7577489A0c787D47cB6777538725",
    "userId": "110070561"
  }
}