{
  "manageEntity": {
    "action": "Update",
    "entityId": "289091158",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x66b264fe7a3933744e0d28e40de1013273d459244bea68d096b49d8cc0553cf3",
    "signature": "0x17c700e309870ba55d8de5cf2069082f984270d5555d3f49258fc42ea0e7629068a85017c56cb3c4cbe877c9ca3fb1d0c4fc913a0ac1008c38aadc784f2612ff1b",
    "signer": "0x67BB09521588789fDeED5dFb508DE526dEB0B5F2",
    "userId": "289091158"
  }
}