{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0xa94f24083ba2ad649a615095a4796921fef1f3c73786610c3e2f5c0bbfd3be32",
    "signature": "0x55f35d654e1830ed9a56bf33a5114fa659138b772c49d57a9442aeaacdc20309522f717c5154d9df0c1713beee61077f89c8580d448f74619b3d861e31ff3ff21b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}