Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'feebb38553e72cf8b1d00209741476cdc513b6a6a73291e55da7710d3e2db1c7' 
  AND token = 'LGN8KYGxAecSxsy9v2pfQF7bZhBw/dV93xZJniia0ns=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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