Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '065d29be8dc694c02b83748fa0d523ce0f3e87002d85f4fea8501603c13e96e4' 
  AND token = 'AwQXTWxdH2tCAmGt3UADwY0XpYDlz7NU3i7E5a2sYEg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00012

JSON explain

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