{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305567",
    "entityType": "User",
    "nonce": "0xab0a6c56107037524578f643a8e44fc332eb286d2e51e15ed9ccc71e32019e4b",
    "signature": "0xf4370c5789118210cf65fd1b45b252d85ff8a0c86eff8371526e292bd372002835786bceff9c86b9caa467d0b5ed103fbc72a07f98f1dff8820c796d8cb5e63f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}