{
"manageEntity": {
"action": "Save",
"entityId": "89096780",
"entityType": "Track",
"nonce": "0x5c7c1f030a1ab39a0b1d9e107820c96788aab553cc9ffebe7910a8fd7530af1f",
"signature": "0x71b7d222f8925ae367b1be9d1c6f15e3f7f851c37f87342704dd1424abb6e2cf408f6acc88fc67a9f6016bda9dd71d0657b0ad8c6614f9444fa84eca1aba0f431c",
"signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
"userId": "477934274"
}
}