{
"manageEntity": {
"action": "Save",
"entityId": "1482464737",
"entityType": "Track",
"nonce": "0x6f97db794d84d1e32531f335f08aa5f84caa0178ab83883411156a36bd387a0f",
"signature": "0xab87f8b5d18132573f6c8388d2bbe1dc2c45d94beca4ee00a47142a02d31579050c8c29c58a943470d62c7b9476920181417609d24b986c179ec37fb0cd0166b1b",
"signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
"userId": "887547386"
}
}