{
  "manageEntity": {
    "action": "Save",
    "entityId": "1196545327",
    "entityType": "Track",
    "nonce": "0x530f01de9ac171b89bd4c55881bebb7b79cf28df69417ed8081ab6048fd8bc2f",
    "signature": "0x0cf15162e1689bab7c5001b9ca61d886bba2d531449424c73a7f3b8f2638f3d1311d50398e7d02484720feccdad04eea389243909fc6a5c540a69445a98ea3b21b",
    "signer": "0xC041f26f283EAf5F5C78Ab3694f6517cd2d3a1F7",
    "userId": "93075"
  }
}