{
  "manageEntity": {
    "action": "Save",
    "entityId": "1835440276",
    "entityType": "Track",
    "nonce": "0xeacfe3f32562cbc111c5f4623646ca4b2bce35fd59da3b03daf152b695a73d7d",
    "signature": "0x7e67046df90d6a45b1b8796390fd3f41c8b76ea8cff1e8865688f0108390118226086a46b5fdfa045d7f0b0a54a531cfc4f9c44ba094969a6309aa806e780c511b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}