{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "739472267",
    "entityType": "User",
    "nonce": "0x0ca61889390ba6083bde0d87f00da764a0f9725139a4a7528ce9c47884bbf45e",
    "signature": "0xeec781bc4065f419d010168a4fa12f7d1030ef1090cadd9a6133c813f920d6a927cea95a69d04d1cc0f505a295d04a1f8e1d7df7aae0d06792cce420caff2aa11b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}