{
  "manageEntity": {
    "action": "Repost",
    "entityId": "639759",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x85f8c4c0624cf33918ca72396bf9520aaf73f9512ce860a90d2c5dc0e9dde3af",
    "signature": "0x5135bbe96a6f09e2cca8deb3cb5e155e694e9784d85d66672dfa4a469e5e044c106be15de909c9b02cb70046b0bb9f49670cfca86e72d1b41d1314f0f8d3df9d1c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}