{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xcdb2abf6dfe8c6d957a16b1188695770cd9f37dacc841f99261d83c3a50a27dc",
    "signature": "0xa0175a5f7d8c178b423f7c930d70c41bfc3f86c195ad1e21da488104db17ab17069cae9beebc78874478628b71bd318244576e262183ea6777319b85cddb43b61b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}