{
  "manageEntity": {
    "action": "Update",
    "entityId": "157593161",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x06c1d8a808d36ade2e2dbeb54422446815feacf0d8d79466a590b5fdb8891853",
    "signature": "0x6e0f9ed601d7e6448a9fd3bc0e3658855309270ce12beef3e3da03a6c446dac9560fa4c8e80ad9efa0d3e35eaa18b7d3a63008e1bc4e211678cae7f2beb3fe961c",
    "signer": "0x89436Dcd5742EDA8663c8D5FB952947E79ae4171",
    "userId": "157593161"
  }
}