SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'c25701a630db588d3f5228b1795b5c863614c7b2ad59c4a27f58906418aa871f' 
  AND token = '73BmCB/Vvc+KPqt1FrYkveUpjEY+mDua3x0s7bNeXlw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}