{
  "manageEntity": {
    "action": "Save",
    "entityId": "710170957",
    "entityType": "Track",
    "nonce": "0xe545faf7f5fd85ee66b686a3a230c5d8bb8abb23f99df66c45a28c4926618f25",
    "signature": "0x0bf1a4bb459e0af7fe04503c44f9334f084c04d409d60f9b685253c4c3f2d96234df98639ac80f7f66dd627dfe832d5ad54e45e8c9c0a60de49a41d660c611631b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}