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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22b3450312d772e2a6afe6b0d0bd9d91456f92cae2e53830b2369838a349f181' 
  AND token = 'Gj/QuMlM+XskWfTd0YtL4OT9LW/95lKEqelfXzoKjhU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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