{
  "manageEntity": {
    "action": "Update",
    "entityId": "344552512",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5cbad8152d60c21eb802d1ec731f1c1e590b8006c010c6daf474e1382b31226b",
    "signature": "0xf55c68fb104a7ac935354a300bd759962d1e75eb1a366cb00b423127a8cc1a076003160384b7de0d63fbed8c409b5bf9eeabb74b73e92e7881678322bb6298ba1c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}