{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x5c7e7d7541e89346e65f632a4cc0cf5523f185d66726bce5c50260fdc2b405b3",
    "signature": "0x143c65b6fbb31b1b8a2798256f5d5ddb345a9c407cb5db67223cfd414064195f59d5303cbdc6dc195ff8970b639b05b450f55719ec3166f051a01e4763f61b331b",
    "signer": "0x812890A6DBee34A114713AB8a5D839CDB1c20363",
    "userId": "354441"
  }
}