{
  "manageEntity": {
    "action": "Update",
    "entityId": "881446128",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera26jdfmmxhk2miecctpqb2cgkbfwbcu42gjwugxilxi5ahlbwucia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":586009028}]}}}",
    "nonce": "0xfbc0eab5e13b98bee07a23b5f36f67ca990ab2658c441787987e5a9c4b6ae6f8",
    "signature": "0x9593610eabdb82e596dcb4d94fa55dd07c78d256ddefe696b4f52a16ec92cc6b1d3e4d3450bff02cf45ae0a09365b2e642c8314bfcd0297bd86487551a3bbf2c1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}