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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eb0059ae93500f0c3dd641e838fef9d68d965dafeab8fe713a332273398ea562' 
  AND token = 'Z4e/FyOhQfXaHTiZXXf6nTxJzTAK6ls/En2V3+h6M90=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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