{
  "manageEntity": {
    "action": "Update",
    "entityId": "650892648",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x26a14d3a6f07f9226df50d4089da93707566ad086f03f0a0c64309f1b873a04f",
    "signature": "0x015aa70037a5580045d414f115e9855876f449a0b60619f1f2cf541f05058aae78a57a756c4cf181eaae3092f14372c82a412dc9e298f9dc7d368303d48094aa1b",
    "signer": "0x584af568959cbfE3938a06FaC2926eB0A92a70f4",
    "userId": "650892648"
  }
}