Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86fb2ca341997a0c1141dc9c6bb835774c601b21b70844376e3fe9193d969b7e' 
  AND token = 'glSj4G8U+GxmqN2d5ctgqt71CWhqTG6X4TY1uXhRoVI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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