Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a932aae00ec5f00dcc72dcf2c0e42c3a2c72269677c8998532fbbfc353d9bf9d' 
  AND token = 'yRJKWOMiewoogO0iGZA7EnKfTkbOhpGQPIG8A/wBtHg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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