{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4fbc3d69c2cfa5ef98659d82be70c8939d436b60691dd616976c0257fc35150c",
    "signature": "0xaad2dccc8346ff53a08224e937b8c6b7b7d936e9d41aad3d97b99c7478633a9d4a42de5c3af20eb8995953a9fa18cf86841a2377588014648208668a136f813b1c",
    "signer": "0x26A3Bf55EdB37b3C23aFCBf7f977b73Ab5111f80",
    "userId": "614565620"
  }
}