{
  "manageEntity": {
    "action": "Update",
    "entityId": "651472472",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0d4e7c87461e45a260d4c0ad2e0e24ce1813d3994ab8472b975ae541914e433b",
    "signature": "0x20a185f3275adcbcd5317f79ef89850015b315b8e855b891207dd83df051740339af1b1b26a1afa859635513ad03f6badfc0e220f49c0849c2b64eea16bd702f1b",
    "signer": "0x724E540c9d3ed303Ef6F39F2C1F872Bffb05EE67",
    "userId": "651472472"
  }
}