{
  "manageEntity": {
    "action": "Repost",
    "entityId": "552091204",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xfa4450755606fd0b0cfcc3be0d025348099a1f5ca107ebf2c7b270623aaf9b40",
    "signature": "0x5b0741acef94a8ddecfe469a986e5b021bf9e859e08d688d78fc32e3c2eb29ea72ca2bb07fd55b63cb1a9640207c3da903305fcaa9d6ca9a7830448c77c0a4771c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}