{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357010",
    "entityType": "User",
    "nonce": "0x9ce5de5c78cf1f4a05003a65a443465ac0c218db410eeb18c709416b5c11ee10",
    "signature": "0x37eb2050419a8b11c675e37215a53dec5902c7fa683893b51de67fccbf3899b80979691d2a855c55b202fadacddefc1935a67d5cbdee0351b4a2a270c92c8c271c",
    "signer": "0x0FFb102af9bEd83F1ef5aa71Bb44e1B6c455B022",
    "userId": "785050962"
  }
}