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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '1040710f796085d4c0d2e80ed4f19e72a85dbbce8c4dce35faae3644d0c9adc3' 
  AND token = 'FIpil9dA4fsuyV8u4eWsb/aPfLTKo+/P/7Tgm/o6rdA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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