{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xec055bc8bdcec378664a531f01632f80844df8651e933570a6bf814f06946c2a",
    "signature": "0x745c7deb9afd3217b0abdd2f54c7a6cfded257e466a0e1ef89fb50d0f37d9bc30578127550ae56a86b07cb002c69abad68b7705d4336f5cc63b8829f59ed49ca1c",
    "signer": "0x46231C1424e04f00DEd026172b25d3d8915Eab70",
    "userId": "389564131"
  }
}