{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0xf95bb120725373b493f4c5461debf79b430c9e5adbf83b73d0b7a17725572caf",
    "signature": "0x8859a8b4a68800f42729f1552d39a423bea59baa52d026ec23e8261a1614953325d453ab38f9e3c7e333f3bec1ce878e053c0eebc4f7de89e79528b7042c2a641b",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}