{
  "manageEntity": {
    "action": "Update",
    "entityId": "908859748",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdcdc91006897870417de2706481bce31127b4f6131be0bb69743418c54c3bb86",
    "signature": "0x354b445b861ec27214d0166f7bf508b8f9d9db54758dd892c263e0c742331b951f4f1ad786440b006f352e16e8738ba9e131b71907d22dba82e715ed150170c51b",
    "signer": "0x1fa12Aa1f430Cd8d16FfFA989B8784f1dB6Aa6Ea",
    "userId": "908859748"
  }
}