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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'fcd1379617814b40098c8ac9d58c0406d18c8f845917cc23295c3b1e83c2aff0' 
  AND token = 'u1qo1V3+wRe6cMdy+aGiAXTGG/+3kO+1BKVGZiqoERE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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