{
  "manageEntity": {
    "action": "Update",
    "entityId": "14970479",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2b142d6d013b38e54f6f9e8f9ce2461dee28a57535617f023c92f123097eee96",
    "signature": "0xc57dfc8a54cfb95b5c56d16548304b737645a5bb8cda82ae0419470282439aeb6ca7acca57fc879147aa401d17301df1ba0b51aef0cd3581bf4c804d1b80c77a1c",
    "signer": "0xBD4Ab96879DdAB99F156aC8F3f3d7F528E695fE0",
    "userId": "14970479"
  }
}