Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4815b18e40bd9ef11f3809aa538c6f4736adbc889240e73919d81024a3c61cad' 
  AND token = '4DXBb9Hiid1yb/m3T1K36Y7Dx25DATRug0xqvm3Y+Bw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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