{
  "manageEntity": {
    "action": "Update",
    "entityId": "776171442",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2ca989876062cf786cf5fb329aec1b122b2cdc26d2a478917e4dd4e1eb507be9",
    "signature": "0x341e8aa98b342754a9f40b00b04cfd19ca6f296777930b86634dde02df8baad166b2bc1b888d3dc502c3830dcca8fcbc19ea9bba9711eee7430c651eb86d2f011c",
    "signer": "0xe6a02C2BFEf1Bb0780777C2560Bf6e8fF5153c86",
    "userId": "776171442"
  }
}