{
"manageEntity": {
"action": "Save",
"entityId": "1163708911",
"entityType": "Track",
"nonce": "0x5608adcf36e942c06bddc52377194a68456d70770aaf86c76ef19ff37dbfca49",
"signature": "0x2fb5a6dec169f89aa98c35039f346b03584776d97c9bb7209df59104d7cdfe315564c64b26293fe0b89933639ef59f148497ac80cb72cec5eb7057b1f4c4122d1b",
"signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
"userId": "890889753"
}
}