{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780125",
    "entityType": "User",
    "nonce": "0x54fc2baaa16a288d499b78182b02989f76bd527746c43cbc79a584f61bcd32ba",
    "signature": "0xe379d68205ca8b101021ce2268c4910def294c3c4827c5ecb1af901f210cda076f60c686ed5e9f845a50f4ecfeec1eddb0e64641c905303c17309911cff91a9d1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}