{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x7c391d9b473949304ff692a38fd35540d066a83229ca781dd8b433a00fecae5f",
    "signature": "0x445887a1618c9220eb8bc642644833f91d4d17d373760de6c08b9103e5560e03308bcf4aa355a5b069f29f89a1488ba5776ff529403b3488b53f4622cd0463b41c",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}