{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "774480765",
    "entityType": "User",
    "nonce": "0xdda6a8e1eb837b9eae79ab757659088a9b3fbf93de9b6aac7ffdc1405d41d026",
    "signature": "0x3fba61a4618a7453a864ebeb5a4c134819d98467c1687bc3f19bf2c98ee6151a78dfcdf98c7335a8b29fa72bc9fbe06637b564f13ffad7ecd71d31d2f0fd3c4c1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}