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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6604ac9375901b959d6c349d9beae13051149b23079d985b2af1877b4c63035f' 
  AND token = 'Ii7dYGzZZ2Oj4UbofPmkha1aQeAE7exTR4639P6LbIU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00060

JSON explain

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