{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0x9d54e95b7d5915177ba1890713e1fd4ea59de130f180b64dd67efa8f423d6e02",
    "signature": "0xe78d2591428613aa114fde89b0b4a03c0020a8a89463885bbc0231a0958543992b66d0ad7eaf8d2967840bf0502fa1918f999022a90febb582ce2a9fb0f8eb001b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}