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SELECT 
  1 
FROM 
  tmall_lock_keys 
WHERE 
  key_id = '0807e5d38c0419b105f172eeba5ae45bf1a8c11bd25f3519f3ab4304504cf9ee' 
  AND token = 'e5BoyI3oyq5b7IVIV/AQWuwL+BMSnjms8CvnuBKSXrU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00956

JSON explain

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