{
  "manageEntity": {
    "action": "Repost",
    "entityId": "638696340",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x57d17f858300907a6ad9d78c3a1e75bc1b4b75d19f1735b3e39986a76e82c416",
    "signature": "0x2d6fde687993b872726934bbafef71a56ce655d7cb327a2088b05b611e3dff0824cd655271e08fe2f84a892f869c4ec11c4cdaeb1ada6ee3d64b69c03ddf5fb51b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}