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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'ec5695eab826fb34b4ddd73eb39ebd29683bb99a55576d9a2ba8dd9bc37c8ede' 
  AND token = 'NKBdLAilTEOzm0om6emHT4KHzL4vaULnWnNukAzC2TU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}