{
"manageEntity": {
"action": "Save",
"entityId": "1805303224",
"entityType": "Track",
"nonce": "0x0d6dafa5164a8014fd7b0c62c2ac93da321ff3fd0dfe3ac47cd03b1c810530ca",
"signature": "0xf08f9e2665e4994606a47a6856b6919b0ab3b96771971c36735e64a63c923b3f2b9c206ab0220e8363b74c3d80d316a1793570f8970a0bb0dd6df5275180f2031c",
"signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
"userId": "280440301"
}
}