{
  "manageEntity": {
    "action": "Update",
    "entityId": "968833670",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe262e72afebf6afb0a0e87cde7d60691332cd2ae634e68813d36c6693a7f00f",
    "signature": "0xbea57c705178e3e800f726061e22b000b4dbd234b5d96b5e4201f3ebeae71bb077d55070b3ce3bdddcf670ef7d38ae97bbddcebe94f57ec75a09ddd3a96c4f631c",
    "signer": "0x327b2139f8E33A93124cC314A5124b96FD4fE87a",
    "userId": "968833670"
  }
}