Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'e692315a667a69bb34dd132444d1dea314b7a342dd6bf172b2f5d144f9a3120e' 
  AND token = 'XE/j3s29mcUPy2Pa6DPLCVYagscjcRuJM/Jwi1IBi5A=' 
  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"
    }
  }
}