{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08bad66ee54ba22779a15cc92b299b13977e83bff6a4d7608890f00f867666b6",
    "signature": "0xf68d564f0888eed18711eef7adee455626fe6c092ca0568a6280fcf261e46bf059c893d90885259e45f826cfa3d8223acbf747c1f903992e6c5b1595926f02af1c",
    "signer": "0xcc9cCc523005B394381478381D34DddB8558A28f",
    "userId": "957873025"
  }
}