Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '04b25a922e38a6e3b14ff236b11fa1b13330210e4032cfa84260dd658b0e0c4b' 
  AND token = 'aCVyVgHfo1NzjepaRo0XCZ//JGvLxWx0dalM7z/xEtY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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