{
  "manageEntity": {
    "action": "Save",
    "entityId": "94759",
    "entityType": "Track",
    "nonce": "0x808fa88e9c1a8dd3aefbc4382575f20972ec64c4bf2e07a99e6fc8cbdd392a24",
    "signature": "0x92cd6572d03b8d071689d811ab2115c1381e9334f2d3f32cdacc0df063042fea402818c8eb62d82e19a868ce0358d6e3de716a747cce6943bea6e610b85aba5a1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}