{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "657793725",
    "entityType": "User",
    "nonce": "0x44c45d2f281c25ec5a4b288c1c77b312299955ae0f50e765d876a1c8cb8d9e08",
    "signature": "0x5e5ad3062ced0c8abfb427760b713b467c7ebcb3f9b553fc0cf818ca1e33a00a1813df54fca2db4b6398d756ba107287c4d43b8e07dd9576779b3e4942a3e4c51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}