{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125008",
    "entityType": "User",
    "nonce": "0x66e1f72e9d7281242d5064a63a1cbba3c83dc57b26293202dfb2fad23d546d5f",
    "signature": "0x1c93a045bd93628dc14e12c3720ca3a79983a33fa41c1d889c00f3d9edfcaae823909bc53fdfe9e33a9212f2acb946e67e0a22b3e1e9d565cf740bf0520721e41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}