{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x455a3a1c7acf020419f6b1810cf0226a67a494fabfedb853c83040b94c3b9812",
    "signature": "0x66911c2a61f613dcb5b1b3bff9d6ed397c202b30d8cbbb7019f5fadc48a3729503de17a5cb84d1971c0130f995dbf9f445a1b5551f7c3a50a710b74b954e30ac1c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}