Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1dbb4f8a071b470489e7acebaa76f217de1733ab3c289f993dcb67a3f380eb28' 
  AND token = 'lV+zHe/FZdzH+82gX6DN/3D73jTAe/ant7Jbb9vfrH0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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