{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "790717795",
    "entityType": "User",
    "nonce": "0x37afb7ed208546a1dbddab9fe7cea2808b4c2e156f6580ac36537bd38d414beb",
    "signature": "0x3ef0e6586cb4a67a884712ed5e5858402d521fff9d36171298a57689b5e8457962b551eb913b968baae0a9ad4cfbb0354d29444a482f8c96d8a1f587d08ecc971c",
    "signer": "0x8C2cD9474e966cA371f4245785f1F14a12031af5",
    "userId": "771731069"
  }
}