Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '699c00f7cf9be08972bcfa684f04f55d9a16e00c3c771b2392b790980d265080' 
  AND token = 'fBPKIVL1tmTdDn+7QFyjbDmfijT4zyfyGdoy5dRrq5s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

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