Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd5799bd516563b630b7e5602e75aa31fe264b62e4c0f4e7111c60e8b38c9facf' 
  AND token = 'Aq0Vrxkedy98aB6joLqsPsyjgtW3e6L1oC3RKDsW/BA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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