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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'f962ae752d8d8046a669fdf4c6d9ef90251b7077e7511d1c19083f468573c37b' 
  AND token = 'jmhX/cT3UOU4MoUcnOedJEe38JrXM0ngTMZCQwLv4U4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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