{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc68c3fbb09698ea981100eafebf30e48d2a4d04a4c4f0f896948d6c4b18080d9",
    "signature": "0x55dffa12a625c4e91b2efe30c60e8ec1f75c3b6a1a7686a67ed4dc50ed81f8be212330bb7e3acc40989ae14b63eae2fcb1d29e0461a4f90a3a2822292d8fdeec1b",
    "signer": "0xCe924ffd53D86Dbef0C2Ff14D8363469048BbA5F",
    "userId": "758403941"
  }
}