{
  "manageEntity": {
    "action": "Update",
    "entityId": "889486955",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb2ceb4c18a1b1e4b687bdce0dfe0574deeca3e766cecc256bcdfa1900da4a5e9",
    "signature": "0x81c4f9662345630d268fcdb3bbf1123e4ccf1a5b57fd0513815b2b3bb92880ca72ce8eff93fcb3877379be0ee0407efcce2545447bb2e00d5a36176fa5e232211b",
    "signer": "0x057bDB0458FD76561C0398Ca305bD6A53C33893E",
    "userId": "889486955"
  }
}