{
  "manageEntity": {
    "action": "Update",
    "entityId": "237765871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5ce25ab963edb7b656c839ee8a46f607a5f431b14e832e3230310dab074e6880",
    "signature": "0x6f81488529c73985c6eccf6559dd5d62c68ab88b397f6a99583824fd43320c6a42778e650e168cffd6da08a039d805516d2bc399bda0d8d98059ab6e2c4b85dc1b",
    "signer": "0x8c716F932726b40bC9E1CEC18f2c93dc876da1Dc",
    "userId": "237765871"
  }
}