{
  "manageEntity": {
    "action": "Update",
    "entityId": "359024620",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x37bccd1975eced3008f1d379d3e4fb82c5c3c73978bc36d5e9032bffba4f532d",
    "signature": "0x2116f760aa8661fb421a921c63ad40570e058bf2935e9c78e36e944297f8585722ceff63375b9049c1c2c36a45a4ce1a3d561bf27b9f3f674506bc15976224361c",
    "signer": "0xB7004cbc66E36054FD494B2ce010ED2E0456Ba73",
    "userId": "359024620"
  }
}