SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '150545bb45967c29e66e8fde6d06938ab750dcd377bb05184e89e97c1ddac95f' 
  AND token = 'IeV+GFAx/g/7spTANLrBzaRvtFD4qrS3Z56GpkDLWGQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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