{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "947140631",
    "entityType": "User",
    "nonce": "0xc66286e24fd941addb53da1987f4794ddcdcc08325dca9bde36ade7c7bb28f53",
    "signature": "0xfa4e0ba0f243b854b9ab64673242a09d121765a0ee957b6a281927f051e34b85451cc44ac9c88d6f583e5d0dad07ada072c6efbd0b2fa424429322f87b3931831c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}