{
  "manageEntity": {
    "action": "Save",
    "entityId": "1767993117",
    "entityType": "Track",
    "nonce": "0x075ed9cd11ffafdb353dc1c2aba17e2ecd4bc44c6f5bc0f926ecc1a8f4787f46",
    "signature": "0x5fa36ac76725e3a54eaf0a8412ce1b0b36154fa74ae2f61c268154dc2fe021436322257d4c94f66baaa12064aacdf6355e3050de2f32778ad7de8fd8d82e1be51b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}