Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96c08c39a5f2cf1245b574cd8bebeaae998bf9204a546a5de1e776dbd7acd4d6' 
  AND token = 'WCSnqzck+hSAkPfnD+0Mr/NaHwBou0GjynWSxeSoZw4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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