{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1461603",
    "entityType": "User",
    "nonce": "0xfe02da75a18bb4e22781217e9d241399f35d544ffeb8fe144f56ef0b6c3ae51e",
    "signature": "0xbc4d194be1370178b3c58b94602a4bc9c3e4651cb170cb392a49d15fc2cb96a30fbed9d5f13d98b78cbd4dc91ccd8941e65220cf1f52e80b67a90aae751a39421b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}