{
  "manageEntity": {
    "action": "Update",
    "entityId": "547631414",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8335ffcf11ce69e0fe928cfc58a225b2c324c9b7988e3ce865ff14103b0d3f46",
    "signature": "0xd3a06397185ab1509f6ccd5a3e344a11dd69082eb4e45a96bff92756dedbb2766a59f36634f7ad891e3e4289374d1a90c394a3acf5fe2366d7faa2a242fced7c1b",
    "signer": "0x5E525e13F169B08B94891FdbC996D3fF2740E9E9",
    "userId": "547631414"
  }
}