Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '118a6e81e3e0217c25b516037073f0bad56a9353ced639d0af9b173cd5e4418b' 
  AND token = 'yzsNwe33FEHh1Vce1Ls6fm2Av3jVXWD6yl88f6VEWBc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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