{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341554118",
    "entityType": "User",
    "nonce": "0x564d870143d8ed20540b31dffbb64e93169b2702b2d7238237e2a913141f4dc2",
    "signature": "0x5249c2b9eafa2322772196324a38d3a689f80c95bec66c79eab5566cd9f9c18a2ee197e7065aed78b95ebb838bfc41bdb0bf040d0afe674f8e43d5bdc3466f011c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}