{
  "manageEntity": {
    "action": "Save",
    "entityId": "1055988996",
    "entityType": "Track",
    "nonce": "0x53c92b655054397961255b089bbf69c0552ef3bd32addf9b678856e77bb69b26",
    "signature": "0xdc70e5f627af8f4e54734ff30132bf714b143b296c3f7087425cbc09464c6a4c4fad7b410c83f2571ae12ceab03b017a86c7a9b4aaab9793a8f4b5637f0ea6ac1c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}