Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c7f70aadbf2208b361a9bdb9403f2da774f885c584a82fb85cebb9e697b40064' 
  AND token = '8BHyveZQsz27IbbqxG1brU0gxi4/UAA2oJMXgaByxsM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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