{
  "manageEntity": {
    "action": "Save",
    "entityId": "1427015225",
    "entityType": "Track",
    "nonce": "0xae9fe67a7629416009a7fe9c0c33540c3515d494cafdca38b8fa7ac6e8257f59",
    "signature": "0x97bd53197b49e3eb708706e8abb87cb245cd9c460b3acd9a771f55154003e2c20ef1e43031919b599bc76b353e02f10d937909b374c5cb0010688abc19528af21b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}