{
  "manageEntity": {
    "action": "Update",
    "entityId": "443347253",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraay3tz5kqktojft7p2eysoplnlzbaatdtorno2w6ygc6jbwo3ihvq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":480664545},{\"type\":\"playlist\",\"playlist_id\":58505438},{\"type\":\"playlist\",\"playlist_id\":1967722937}]}}}",
    "nonce": "0x48c2b5ec0c2d2e979aadc83aafd7621d684fd22165ab593a1e66fb8511722ecf",
    "signature": "0x1e631658e1d3a2d3791f047a4083936a4658b5c400cf3b4ed995a1bf32492a1c631b6121da5d80286dcf56a602e87d3ce4863e2fc6cbd2341fce20b474c597771c",
    "signer": "0x01FF89260B418e36957bB9c98f93114A58a76127",
    "userId": "443347253"
  }
}