{
  "manageEntity": {
    "action": "Update",
    "entityId": "957255908",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc0755c5c198c88b963fdd8c6bf6a5d4a7407bb1320d88a43d85d7f8af09a77fa",
    "signature": "0xa8f7fbdaee07e0525fe37e151c5738ea80b3219e35be028e1119c09fed4567f76e18ca932d6c2a9fda832d22b9ee601acb55c224c00f88a4546d9938ae0dda551b",
    "signer": "0x2EE3AFDEA4afcce094C60c49c88c63ADae2AE309",
    "userId": "957255908"
  }
}