{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1581756864",
    "entityType": "Event",
    "nonce": "0x54d12e9b6292ad04795ba1df3e04e74c7ab2688de7c12fd2041bfbcad92d9e24",
    "signature": "0x7dcd9a0466072beefe47c08688f45899784c086b33702e7cd7560eaf342da55427bce595a2fe2915ed9e9ca0025fea5d06d73298f6229de549c04a4888c2dcab1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}