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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'd06959aff40e13f0d7e9e808bfc5bc0d289dd76f893243f6a86e5db29e0ebda6' 
  AND token = 'JBeJktWxKP9/aUyL5YQX3JCcVEmmWwTe2vtP5/Caneg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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