Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61bdcfa8ec6f9126ecab4092c173048504254439ac6d703bc1301146af97bbc6' 
  AND token = 'p4zHM/sKyXXjZFEk0MpC7LJj5Apr5Z595Py3YA+Iykc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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