{
  "manageEntity": {
    "action": "Update",
    "entityId": "368319828",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeaea7b0b67266caf8fd38254d57a463e3886f03e41e7514f40b44a6756baa749",
    "signature": "0x661ebd52168a1246173e546679459b50fc9b11cb81912c798959348458cc89d7231b18556e1a65532198e37cf1cf7dfbeb25585e3f2990220e201e7dc084c8751c",
    "signer": "0xa900b068954c988c4e1FA3E4D25af93c8aD57346",
    "userId": "368319828"
  }
}