{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfcaee3e86aa599987efad6ff1e31feff828b0cba2edf9987d20278a2ed5619d6",
    "signature": "0x642e3067b0ca253afa90536e39351a309ff13a1a26457422839754bb830b43a650a554a2d3a49978fe328572adfd236b9ef6aac47c9b75150e8ee2ebb3edc14c1b",
    "signer": "0x9DC85A53726bD5aA08B975Fa1Ba2B3882a148aff",
    "userId": "870351659"
  }
}