{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "473414",
    "entityType": "User",
    "nonce": "0x0048d518350394a0a7075e51bdcc0f7b1e776062c562498f523e43cc7f6da792",
    "signature": "0x2506226406b20b2b693e96ec7b7ee4f393b8426374b87458d20f8d0c2b2e1f794f1ac58bde34dd8e934186db727ad2782a24422798f60eaa8c7da97bb1a32cb81b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}