{
  "manageEntity": {
    "action": "Update",
    "entityId": "471924477",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x05116378cb74bb73235cbc2267c0ca58b0d71444369b4dc178de6ae0eacffdb6",
    "signature": "0x6c453d315c70ee7c1b8f05affb73fe5eb6420161468b4893a8693758e8fb7a187ff47ee1dba6bf8808c974963d299ba265bdc1821cb3e1986447748c347b0c9f1b",
    "signer": "0xfa60C9b08a5Aca204F9c509Fd51FEdb4F4aA13f1",
    "userId": "471924477"
  }
}