{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xfa812c2575b876dd699b5556e4c1573fabd02dbc618278fecfa07dd6e11650b9",
    "signature": "0xf973aa42d2a8f84f9d5e0791359a9ce7f2fde6d0b8b7ab0997ed6dff1b933bfa042f871d3c7f793aebc44d09ff549a9d93a70ba1b97e4ade499179e379a8b8091c",
    "signer": "0x225A0F26D8c354e4B16725295bDabb4983d0F6F1",
    "userId": "994175139"
  }
}