{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0xe97cfc14fe76b4b3eedcde0e2eb7c69e9fda45f04c0f1e96323603dad82f9e7b",
    "signature": "0x5009b9a652cfb3e3da4c6d2ef3d60221f1fb28ffe499330800f0c0f22f7b348076c691fb93b441c0453b26582d809a0a971167126c2230f07c6a9495d0adc4861c",
    "signer": "0x46FCeb3B4CC66d5AA2A495C482D103Bf09Ef8B43",
    "userId": "577430813"
  }
}