{
  "manageEntity": {
    "action": "Update",
    "entityId": "950085558",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x76306aaef076f7ada8bd5faa80981f0c4c78b469172ab1f156f7ceb090a22d01",
    "signature": "0x4fb4c08f54d3e63ea65957e6d307396b1a76bd92f0e78b66583d47b49002a0c6007516db4b8514122cb694d4bd67d1a86ea8be3eadb3b15a5575710b69aa93101c",
    "signer": "0xfF3856c76E772eb9901df1edE6E84DC7e2C4Cd20",
    "userId": "950085558"
  }
}