{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75351880",
    "entityType": "User",
    "nonce": "0x257cc092490584ba1d36dbb90f4f1d49ccf3d04e45b0ab0fd545540c0aa3167e",
    "signature": "0xa60c36483e140144debd965e352024c1fca87702a71229f7ef838b3dd94a50257bb549a90a127ea6b248b43377e119b4a852cb377a4ddf3f64ad736f94100f331b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}