{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0x39042721d9250cfba02293693a56877fe0889826944183f4c6bf1d9ddfb86736",
    "signature": "0xc42890269cc3e592020e65e1810c86a4865f65ac6e90db081a69a7dca3a495fa05908a5c8e7a7dc31952d5678aac652fa485f88759d8fcfbcc039b21cfa947f11b",
    "signer": "0x6CDDC7B674Dd0fbE8fB2850B79b97aA2A37Aa071",
    "userId": "218692613"
  }
}