{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704439",
    "entityType": "User",
    "nonce": "0x0cbf4d8402b2259253b2a62bcbc2ade20e766927f935eaa2efd9499b0d99187a",
    "signature": "0x517dda910ed823ce3bc0914dbfb8d51f7d59a6ac9f1b407faaa2ebb8e1bbbbb25228110c296451c1dfc1ed338959b89dc6a5e51478fb3edfc021c0fb41555ff31c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}