{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21420016",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x248465d9e0dcfdb9e23c48e00aa13fa965678be20b5047f1fd6f75306b804efe",
    "signature": "0x3bedc47881df6e541f2d3e1e33de5d32378bd4d7f24eeb9ad02bd9abc04bed844318c667baa3a7f365a6ef61263c21a7681d3e77c974d980d650493a869573021b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}