{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3b105e02b9d82f8ab10b6fa3c4ecc031cf9bb12ef9d4e75af36871971b788f9a",
    "signature": "0x60b26f6472f56ba32565de526da12759324050eba676f74e2afd00a7c3d7fc15597daaa24aa5f4b7d196fc8e7ec5340a25477b6a57ad5259033fc4169c7055821c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}