{
  "manageEntity": {
    "action": "Update",
    "entityId": "690148817",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1e5e740631c3ecde387a5f136d40fc179d3550803d835334711d7ef8d67bc038",
    "signature": "0x243ee76cee8a2e655f947fedf45515275515ee7c92cf963d64fc891ba598cd460bc8cd5ef82c132066435c07348944f19d873d060308c30fa8763a267258f3c91b",
    "signer": "0x9794eD40Ef7C8C263E69ff16234e71c46Ee16936",
    "userId": "690148817"
  }
}