{
  "manageEntity": {
    "action": "Update",
    "entityId": "48891931",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x474bbe8ce9ac5bf240dae0ce0bf64c05780823ea381ff32b494ce8fc5302eee3",
    "signature": "0x3ee49dae2a13832e0fdd6e04c1ba46c975fc0f1ad7098225ee8312f76aac26d857c6c62c45ae1f03cf43a9d6d46130547655be5e00aab6dccd6508446cb5e01e1c",
    "signer": "0x4Ee61A3294E3fEd73B519f645aB36ccf1eccAC8B",
    "userId": "48891931"
  }
}