{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1385998271",
    "entityType": "Event",
    "nonce": "0xfe5cc2d0d64b9e5cf3f9336954d499f841ccebf3eea03db912d44e48af01d739",
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    "signer": "0x719Cd9125fB17c430e43532DD9Acd52eFcBdc9e1",
    "userId": "551883994"
  }
}