{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280440301",
    "entityType": "User",
    "nonce": "0x2d024605dd8c39f0ed4a588c95b0cc9aece49e38e90fb08dd036592a76004544",
    "signature": "0x85f79492aa2e09931a74c44899e746524bca294e8412abba1a5812544c65f363066f54b9f4d85c365ce5ee03cf7624d6b329caeec9a0224e8c05a82afac40f3d1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}