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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '06f25844ec5645da9130f8578c4a9730c4935ebd3bb4a443737969bfa5b5f539' 
  AND token = 'KgTYFj/hcOI3JFJE1WRMg5Tpk97xd2tlGJCfKlekmRU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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