{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0x09ebe639ab917af5feb043cc7e392dd72639ae639b1bb578298b80c5d7949ac5",
    "signature": "0x5c3dd59207d6f646d2a2677fd426885fc64a3f82f815c6585c755b261e8dba9a38023919d1d4b5a7242eaef5aa4717518df07ccb11ddb9769022ab14bf0b12791c",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}