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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '2301956c8880837e8920119bbc1de25d44248fea309396756ae0f39b99bb9759' 
  AND token = 'jr9ZUDZS3A6B670WTjC7R7J7Xfli3ZSJ/vHqpY6lsBM=' 
  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"
    }
  }
}