{
  "manageEntity": {
    "action": "Update",
    "entityId": "129545386",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x40d18bed9d80bc9a5caa3a1aed6afa6fd6cf5709780c82873806eefb86f6549e",
    "signature": "0x1565d404d4d6c4cd013133e761a725994abb851f292c65acd3bd2b54411f305c035e7d7c9d0f0d0492c05a4b26bffc9ae7dad246cfd99b2f40a77cb96f47b8ee1c",
    "signer": "0xc1e08Df79e1f0162B7300A4bbd606eCf9404AE4c",
    "userId": "129545386"
  }
}