{
  "manageEntity": {
    "action": "Update",
    "entityId": "912944740",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2c3aa94fd6a959c60c6ea5fc9fd1444c89e41c2a4cf330a80afee5843d8d7829",
    "signature": "0xa419bacc01ce036fc3325c8b1e3598f52afe8576fb568ae8555ada9ad403e8165f051b24ed154bbaa96c99a9efc4164be758b2cfb8cb5a131f175347ba8fc96c1c",
    "signer": "0xf165b1b731C3205Ea729A5823CB43ac0de2BE414",
    "userId": "912944740"
  }
}