{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849312402",
    "entityType": "User",
    "nonce": "0x3b4fbdecb066c36407ac0e4def4dbde1fe37079f1192ce52fe4e193b93607ac3",
    "signature": "0x4e28d7da303bf4fc03bf4a58f7748628ce52b38b72c94967c55d6b37010471c05ede347a6f26d21d7942f0ca6af7044c8ac71ae65ee64c52db1461301e0252511c",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}