{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5dfc1c62d4ccd84b2d2a03314b75f0047406d01a68bcaf2aaf9a66988defe90e",
    "signature": "0xdefbe6bd39193511bf3280a2d6f1c51ed1a13ac054f5b326f4cf4007b21643df5a85c419cf6b6fca9aaaa98d2c0e93efdf202473898a750372dbd1342d6efc161b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}