{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0xe001e1499dfd321eb29fc4792a9486434ee30d86d07010c6a371060249b3b94c",
    "signature": "0x132ad25bb498e8089696742f782a7045824beee0fd368032e3a6c9c12917ec125f5b5f015e7844b547bca04ea3e435858d6c953dd31d3aa96971d0e1f47957471b",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}