{
  "manageEntity": {
    "action": "Update",
    "entityId": "955969813",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb971fccf02ee498c023084a495c6cf25c27a1bcd32ce40986da2f093f2f74c2",
    "signature": "0xc23967e320581b741319228038fcfca0ebd26f6d36e87c4d672fbe28c3e66aed1f7c20794103b61804e93a8d7be79f9997e2c2d4bef8ef8a9c54875658b520e61c",
    "signer": "0x383294bFd9E65eAEf4acc8A621FAa35672E68439",
    "userId": "955969813"
  }
}