{
  "manageEntity": {
    "action": "Update",
    "entityId": "651798338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe2e5f8337f8c23703d9be90d68b7884ead1f922debdbf6a581186464989c09bf",
    "signature": "0x2e4f4113874d51feb9b2de55b4b43fb9d1334300cf57faeb70b875440e1b1d0479068d87c40f74ba5c1c9dd54f4d31051b7ed266c45bd38f74fd0655c9d460421b",
    "signer": "0xfA5D278f39d7A517D2788A929416de39C7aD21ba",
    "userId": "651798338"
  }
}