{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "624459316",
    "entityType": "User",
    "nonce": "0x06de220ec5fffc5dcd33d70eac8b7004e173c2766f09f1208c129487135d457b",
    "signature": "0x6e0f6a5fcbcc85b57d7e70c7555532a5b2d8e43fdefc36abcd7ec8a6b3e3b44741cc040fc4c54b3487d455ab78a1a7f7c7c626c3eefc3901eb1f0a7a9708e64b1b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}