Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3680deb93ca506e35ef415dbecb8486bee3630c78857dfdf592ee48f8db7e617' 
  AND token = 'N2MazL0p7CUgSIupuTHt6qCxniewRTi4/phV9Jv4K88=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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