{
  "manageEntity": {
    "action": "Update",
    "entityId": "77040140",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd4ce7b334ed937136fd70d282273497ce830907b1a213e6f64ce6d9817b4bfd2",
    "signature": "0x82cb935274c9822e9c0202b8286ed85b61a88335dc017bbd815ff1b882b6679335432634592e72b0099c91fd7e9af2d8f54590c41aff176e43919802c10118b71b",
    "signer": "0xe2C7aAD01cCe4b90134046027a85D812462c4BA8",
    "userId": "77040140"
  }
}