{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa66c281f68f020c4ea5989511b6a49c040a707665028bba46baf9a877528e51f",
    "signature": "0x5e254dc3e6a19c537ae9e02313837675d86a4685b1c2cd3169c4ab4d09a162b447685241362851972998a27cb5d9016bfead8fd69b058bccefe315bae2e637aa1c",
    "signer": "0x4EFab23E68efB7e12906e915F64386b250B4EAd4",
    "userId": "799793973"
  }
}