Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8d193651b11f03ece6b969974f62bbf69f2ecb512368c1526f5f033688f46ce4' 
  AND token = 'rIv2iFlWB2eyfwZLaGEXXN067FZxUh0f3/Cp8Fjc1vI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}