Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d7d5eee0a67e55635ee3dd90a31320f05e585ba191c8bd115cab36ff1b5229d' 
  AND token = '3J1B37ChWfNy7d/eQ736N2u/1q2Ge4OuSfL0PW0bFwk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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