{
"manageEntity": {
"action": "Save",
"entityId": "141082",
"entityType": "Track",
"nonce": "0x11b14a7a3c8493a6e90642bbd533660c7c3e2b20ec61b53fa7e08e64027e9bcf",
"signature": "0x4fe81d6c4c6017f159bf03ca0afe77c4c5cbd18f50f6fa7a65d1efd6c9197a0d694db40ce4598711c9a2d4c52b7a6611d93f1e5f8a2386522a262587f8a686d61b",
"signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
"userId": "981716494"
}
}