{
  "manageEntity": {
    "action": "Repost",
    "entityId": "121321",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2f6951751214c69a66cd66f04d5b5e36438cd83afa9e7c20bce0d1d8c137e462",
    "signature": "0x42593915a19596e81b22842b891a85c3e5bcb768709c3c4ecbc034d792eeb4092973208f26bb2c60d0fd9b8d42247ccd7dbc005224632d1b40a30c272614d3711c",
    "signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
    "userId": "370091516"
  }
}