Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67411f4288a26d4ecfa0ba05ac8b48be71ae81056519a09cb710d88fa89b912c' 
  AND token = 'lPD0cQ4CcGVZPlzflzF+6y/apwU0jvVsfnzEGE9iBoU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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