{
  "manageEntity": {
    "action": "Update",
    "entityId": "273766994",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa44cc0f6eb7816708b3f8940c87b8f61d0a85472eb7470a0f860c56da9cfb930",
    "signature": "0xfa856909ec3d3669d6643f8f8b5cea2458ecb67d26c33741e2765291177683e66bab0fcad0f527e7f1d13d028ca1a081bda76ae00c818de445773f33506847701c",
    "signer": "0xbd46Bcac8C3e064551c2246449d84B4a406021f9",
    "userId": "273766994"
  }
}