{
  "manageEntity": {
    "action": "Update",
    "entityId": "919907816",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d60cc06fc396c3120d4920671defc56d5d90e083bcf46cf1971dae82187f872",
    "signature": "0x1c4561d42bd69da9fd141233921fa7976c02bb6cf038cba45d8af2498d6aed59715d9a80f15b943457b53af5509f7646f3e7dc225e31d49593055741aa926f6e1b",
    "signer": "0x833A8632B79fc86B30f7b048DC5e93De9DA7B447",
    "userId": "919907816"
  }
}