Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '00e2510b671e634c7d29102708cf61634d97c8a8c94715786542dfd4db92e7e4' 
  AND token = 'nnIlvpld7iPoW2J/ijuGOo5pLc/3nvHZdGkZ3uU4ylI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00007

JSON explain

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