Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea1ca6639ada538cec0d39ddd2d432490473e8b912e3e487d3fbad040287d529' 
  AND token = 'CoYK5AtbCEHNnMkOBvLeai0c4vRlmBW3G9PM6RLR0Yw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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