{
  "manageEntity": {
    "action": "Update",
    "entityId": "546045336",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe13880e1ed02eed3f918825931791d6b70401a66c619ce827af4999813c69435",
    "signature": "0x2c8c120c9f8994c8f40b26d72b6f83f63cc66829d758d43f906c82642ac7a26e255451e12d8c7157c80380ef09ab244a5d2dfb45bbc0d4802f917590eb0f5cc01c",
    "signer": "0x310B0B7191C46Ed776c4A40667e783D2BeC03A21",
    "userId": "546045336"
  }
}