Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '3539fc35a085b8706ba6c235db07c80e7014ce47e4fed885beba40839cf75490' 
  AND token = 'NhR2IVvSR1fV6EX2u4fxqdZObegfdEYM2rVoKel5ut0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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