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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a1a35c897670ae8e6ae56a73b4da9f2b0ba179ed1724cf04d82a4d5f27c7902' 
  AND token = 'eOND6cjE+2/h6RVXHanpZrjEXSh00WDIS6COb6woRB8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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