{
  "manageEntity": {
    "action": "Update",
    "entityId": "129688618",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x81e68461a95129e50e73d0b70b662f06d47f05684719bb28c066e9ca11dc8e58",
    "signature": "0x27c861ca232b077d5b0591f5cc7c019f5f21e92de96695c242092d413ff6767b7f072463ecb0f8ec133a54ccaf45943f47d18720aa128cbbc1579a8a52af50f61c",
    "signer": "0x2B5A6e68Fb7ac6848A0b0f0231759EF6D0053E2d",
    "userId": "129688618"
  }
}