{
  "manageEntity": {
    "action": "Update",
    "entityId": "276451629",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe88270cd1e3b09a3566379a07c068e3b05a5dd1cc9475f43152d0c6b8b03d9a6",
    "signature": "0x778c93b35ae848e205de5945640ff5c3295687fd70a6f51a729eb119cfc49fa51600ee4e4d110b95db348200ec6c697cc3af92ac7d9caa8d7d70dc4175da37031b",
    "signer": "0x4237e45fABD3fa74fb16723F506CC75aD3Df98cD",
    "userId": "276451629"
  }
}