SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '60e230e2782fddbcc4b9afd92a6d4c84a177200ac51361b9d75ac380a1c2f415' 
  AND token = 'G+LjZC0Vn3UZ2aPI8vKOyF9zvlbW7S8Qn93wXYkkm7U=' 
  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"
    }
  }
}