Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f745d44790510421c18263d789ab6c0af5e5da6082846cc01b7385921e2d1bb0' 
  AND token = 'wcltwsl2GN3a9/ZvEj3Rnw2bDfX/bEqwLeLmneRGiPk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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