Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86307c168e670c7747b12934666850a8e80ba8e89fd453bea8b4135b9d344efc' 
  AND token = 'MpbBdJe6DCR3oi4F2iLkSiWSPX0UjLV+KLxZjRe5OnA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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