{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1450727891",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1bcde9f6b6640c5d34960fedd7cdaefcde6977301191f1cc2859342f4e3e7a1b",
    "signature": "0x56103f193503683bc09a7fc7feb8455f3514541e4431e79e2d33c8b0bdb69eff36bc180f599d48e6106929e3ba626eacd371b89ad458d8de7d0238a56c6064941c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}