{
  "manageEntity": {
    "action": "Update",
    "entityId": "173826334",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0f818f19c2e20d06e6b38e6b1a63b00e3fc4dc67a3b008b4a8eb6722936c9d20",
    "signature": "0xd03299acc0510cc482ed479096dc37ccffe45e20bc0b6069f12b9abe40568bd04d3187db712ab11ec0f9a0475046bb1d67686f8df41fe9bf38da8bc74c93b26e1c",
    "signer": "0x35AD525fAe740c1c99b9225698A8231bBe6202f1",
    "userId": "173826334"
  }
}