{
  "manageEntity": {
    "action": "Save",
    "entityId": "1041583487",
    "entityType": "Track",
    "nonce": "0xd5b207161e5fb6921f222071f15c4aaf3740469b28845478e6f651cf407f4bfc",
    "signature": "0xda4fe261a3bbdf3b1db75efc027d32e146bfd2438110ad9faf29eba3f75430ab22cabb04945451dc9011208109125e2905682bff977469e37af35fe70b1d2a041b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}