{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360387",
    "entityType": "User",
    "nonce": "0xf9b5f17414f72423413540477418245b8ac08a38f9ec2c51f25f244ed4c8e582",
    "signature": "0x142dfdedafd6deb6c37575cf35d63c98a18a45e85db22aa5b11d92fd329901ba345edbe3a6f31017718813d8f2aa2f33a339b3109bbd4a53be1990ae34ba3ce61b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}