{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "799910427",
    "entityType": "User",
    "nonce": "0x97120df62b44decb9c08a7fa0f4478f00c1e2362c18a4e295907a648e6e6cd1f",
    "signature": "0x830b5b76adcfa2b623863e5f8f9f81da6224bee6f6ed3a8ecfe9ad0a751ee11578a9f7abc0fa185f1cef7fdf3ce48dccb38a5aa8148796625a9c9a54cef5ef711b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}