{
  "manageEntity": {
    "action": "Save",
    "entityId": "1632966389",
    "entityType": "Track",
    "nonce": "0xe7cacc5fac8bb148057fe5afaa4986761f6d261ef7d264b39dc29f860640bd2f",
    "signature": "0xd368747354e61f7fecbcd6fa65f3e909134555e9655ecc7ad2a1c7a4fbe5d9d952aa8d8aa8ada931506d839cac0b941ddba5004c42266e99bd45221cf9976ecc1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}