{
  "manageEntity": {
    "action": "Update",
    "entityId": "654099762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbf014ba7cd052093bc6da27581c5383efa8b0721c4b301cf7ee24c5e692f04de",
    "signature": "0x1289acccf34a0d3b3eff776b200a7a46452d758cca3f9d8a5a727a3021f1f0b83f82adce8f8f2ecde666d97822bf9b38c528935a3768b23d5b0c7f0d3ea0cc331c",
    "signer": "0xb7BB9AC64c0894fe13EA9711c7Dc8C3A4e54A88e",
    "userId": "654099762"
  }
}