{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0xdc261d88c6e86329bca11389e39bf7b0a2857a8d2f8c88eb615b176d60eb58b9",
    "signature": "0x07637229a9f5839b8e21e4f763a8dfef056aa666c6d794c8533d1c636b42406c0a152f1713edbc16cda6fc397103ed0d32c2fb82061a5faca3404d7b85259f311c",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}