{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1713844",
    "entityType": "User",
    "nonce": "0xb9aed9b34d0421c1f30b6f9b881a4012d6eb91bf515e53758550579afcd80c35",
    "signature": "0xd7bcc4a65d1ade48aa8556ef68a8b03d4f2fe06235acf6153d85268649ef60264a7b14c27cd3d05caed7d079c96b18653c0bc791fcb971844412ca62d4fa1eb01c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}