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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'afe0cdc459217269d6851c4569a3d851a3098660e0f044604d772f04ec0bfd4c' 
  AND token = '9EtA7HDZTM+lyfuGZ8mqrryoid3ADgo4kp7KBb3llWk=' 
  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"
    }
  }
}