{
  "manageEntity": {
    "action": "Update",
    "entityId": "984791554",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x84fb9bd4f7ddf508fc0eeb6a7e796ab44893128f458d6cbe0665a921a9d3e4c0",
    "signature": "0xfe363c3ae8a9b7afe816ffdf95febcbd7a6d1c7a2dbd49c5c8871e05704603087d4c38859b6d52ce0b582de1f462b231ce67449d2c3ca3c1a3025553246732201c",
    "signer": "0x585E1741D553166698Cd60709950BC8c9B0a97BE",
    "userId": "984791554"
  }
}