Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '12110ec6d1e59fe431ba9e5d44c531204acccd6e1647c11272b6e4637091dc13' 
  AND token = 'vYzSm1EkQwGzbuA6FkSCeGs3oZCWuqFQsNqOcsZokHY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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