{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x53bcdfdbcd9c4489f7f4e3d98b45463a4635b1c6c0b7487ba56c5d2d85df05e9",
    "signature": "0xc3df189250e40428ac14b3c24e2ece5bdce400c51987cca8f0e7be13f6612432431ead0d6bcac18074ed6a64aff5032f8c3a61302caa42802b1203d2b4b0f3eb1b",
    "signer": "0xeB77b6E9cC52B8892717c003d884EBe11D8fBab2",
    "userId": "946443800"
  }
}