{
  "manageEntity": {
    "action": "Update",
    "entityId": "418660050",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x01c8c494a608b18dd6f45345e214f5933da01592f86e3a597c516fdfa75c9133",
    "signature": "0x53495309abe90e7f46af530ce8e58b7bd9c88ffa1d61efd0e20227b5688c2245563292fdd1d86f6b7bc0e2fb0c45d27dc7016a075b315b97fcd2b30a68228f951b",
    "signer": "0xfD9e5F437Aae0842341635A25c87Ac319761C318",
    "userId": "418660050"
  }
}