{
  "manageEntity": {
    "action": "Update",
    "entityId": "711215535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x461843ad5de932591b07177f2a6e75753418b86b87ffabb83b8913cfe7fc14cb",
    "signature": "0x8ad70a0382395cf04aa6d3dbb5b1e8623dee068a04260996f54d161390b32e8559dcc771b1b19a425301b5ae8a7c8d6a75f08b787d708cb7edfabbf23742d2691b",
    "signer": "0x19ef6E9dD868c3BcB9b5cab88E7D09219656577e",
    "userId": "711215535"
  }
}