{
  "manageEntity": {
    "action": "Update",
    "entityId": "367835541",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82ae1d55a4b6fbea1be29b363343f1dfa6ac1efeff60b45be2a28d6c12cff75f",
    "signature": "0x96bba98406983a89e54f076f3ac118e03891a471d011e33b08481ca83145967072dfd55f20252da554876c51aacfb692fc98ec341fdb6aa6756ca5021c72f4301c",
    "signer": "0xCA0739Ef37A59E2f358aC36F1EDac14823F65C46",
    "userId": "367835541"
  }
}