{
  "manageEntity": {
    "action": "Update",
    "entityId": "935959282",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c687b312245ece08d2d7e438a4fb457a6f966bc67c3f942c0e63be92eb6cc5d",
    "signature": "0xa568193f151daa06bec9c3c82d27c09bcacef18650966719a838c13572a9fe1a486a135e2327e53abbfde8eac89cd2f9223516ff7dff613a258098e1fca4b6c11b",
    "signer": "0x9FeC2B9C826d23C9cD13d34D23dEd8E681eD5AC1",
    "userId": "935959282"
  }
}