{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134930",
    "entityType": "User",
    "nonce": "0x14f4181491c5b432542398ff80a69c9bdb3ff4d2efd9bd9c72bd3b2d0e9acb3b",
    "signature": "0xb9771a0d09bcd0921719218cc58ccffebd1d5045b396c2a527f6b6adb3361a395bc71e204ec6c330a0a020f6823fc44871953d7d78a39fbbacb9d126a587a1841b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}