{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224343",
    "entityType": "User",
    "nonce": "0xa84629e5eabe2a13cc4a147ad5748a85f8ed165bc56c0ad493c5fbd2be54606d",
    "signature": "0xfacdf33899d1653e02a035f3e461468bf05d7d85315a4646f47f1206f8862e91016dd4dc6b1bf125f1c8a32f445a6bc723c927fb0aa3c331495b63e0037a21831b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}