{
  "manageEntity": {
    "action": "Update",
    "entityId": "108816633",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x66ca470996f1768dd7eb443e5e0ae27626ef27b0722d00b1601427407a193496",
    "signature": "0xc8e7cafecc25abdede1665652f692c79487f2658c70d1790684c4e4f034952c50986423c4529c4324a28dbdead191ff8502427ca58796adf96cba8ed4ac56bc51c",
    "signer": "0xBE1d5FDFb2CE474A3f7f1144aEF2F8EDE22d61Ff",
    "userId": "108816633"
  }
}