Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7f71bd80542b3746faa3e08a7f61e054fdcc55b4ac88e32024eb982a889c2fc4' 
  AND token = 'bI53IdYLgt8HD+b5A1VphbPjBv7S1bptmyrHyhAcJDI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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