{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x5ee6fdc6e942487887fc8a594ee087ccf80a6b7471a4b0f8c34fa53d63a42bf0",
    "signature": "0x6e45302a8bd954dd11080245b8bfbd53e50a90da951113f846887a1717517c0341ae5881de38255a9941373024a08fcf73b2785b9f25060b2408c9bd14fed9281b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}