{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51119",
    "entityType": "User",
    "nonce": "0x91077cc385afc93b17171181ad25d44f29c7b56847d0e51dd1b731ba41532049",
    "signature": "0xf6d1b7ea0ad0b5e4b8efd652f5b7c9e54624325fab9e929c4704648895d114a42554ff09c590e408a1ffec4e9b56eefc292c11314eeb30833299df462da859d01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}