{
  "manageEntity": {
    "action": "Save",
    "entityId": "58093",
    "entityType": "Track",
    "nonce": "0x4422c47a6357d8a578830f385e836cd4bb82c310d56089247aba2c35169161dd",
    "signature": "0x98a842545f23eef08338f472c447c2e604750d78bdce9d6d7905f4099dcd54e52e9c0fa24758bccfc2f9a32a8b0e746ab2955b6fc15a2d3ed23f293b05ef6ace1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}