{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "891247230",
    "entityType": "User",
    "nonce": "0xdc8fe921a219adcf4dedcd62409c93ed71ef08532cd6abb10e24b8ca7029adac",
    "signature": "0xad17e29c7979d606c0c757c2777109724003af9b9ee7179fbee61b4f082f645a03c18dadb8c7f09eb69c38c9645bb695621c21be81e564fb72fe78bcb6fb5ae41c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}