{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320082",
    "entityType": "User",
    "nonce": "0x71ee23d834e02b56147b79028128eece410f008fa152bc9f52ed1c5510dc12eb",
    "signature": "0x66feb52e33dbb99cafab8579e99cba2b329fa565ccb11901706cd75819e3470f554104001dde2de602efc833454324a44a413ea4b963b4f4643e16b7a2d093b01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}