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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dcc179f53903297e3938ae9666f0bbb132ce4e45f42074779cdfbb0d99d12fbb' 
  AND token = 'HTjjKRlxYloGScsXf0RyBHSMG6qgQfNzQ76VnWk2xHQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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