{
  "manageEntity": {
    "action": "Update",
    "entityId": "690992979",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xad0f697e415cf67e7ccea026109198c56b0edc88f95ff4bf4066d6d90ed39478",
    "signature": "0x55ab4368d0388ce1eeb8f25cb241df7579e1b175789e792930a48dae4e9f27fd0dc1a682a9c7cea820618c91a3128f8807ec11d9f88616b7b7e66022c79d84511c",
    "signer": "0x8ae75eC27CB011828626C24f4d4B5647F42b80d7",
    "userId": "690992979"
  }
}