{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xc022b8cb212182ee7a77bb59cae41a6ab06b1a8a1b1219e86f6dc500355f53d9",
    "signature": "0x3d2a3d680f90b20b70aaa6dfd662c00ee1add663ea3e4dfa92b195a3bafc72dc603f75089cae1248754f6400ffc9c469e34cfccc0c4b1a72bf323dc96e95242d1c",
    "signer": "0xD30489a3856C937B7dBdf90576d71e90f0F21C20",
    "userId": "447135555"
  }
}