{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2b332b8fc40f69d60a86df103b1fd746fbe879622eebd344118d2d4b2dadaa4",
    "signature": "0x79f06ac543ea8f130544d28cf7e419e59ea4c131a86e91882a3210152ca463677deeb468b493e4635600030daef15c37a24487000bcd214e4a41571aefa913e81c",
    "signer": "0x8458A4BE523De8165daf0a7eb60bd28029308B20",
    "userId": "681990607"
  }
}