{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306414",
    "entityType": "User",
    "nonce": "0xac3ff772b0f351b123d0a5a0821937efcb8ca80519ffce4a9ddf269beab52a93",
    "signature": "0x2c4151382453da0ed85eea80ab33ba48ec8e05df3f5986366ca43f82dc6a73f029bb043961ea9e861464652aacf55ce5ce255ffda7f281ed119d79ff130d859d1c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}