{
  "manageEntity": {
    "action": "Repost",
    "entityId": "543621",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5b3dbe358ef049dc9a17ae565b90b083f0fb8d72c87f74e240bda5442dae59c2",
    "signature": "0xb9f2850e0cc6dd936428e55d20af858b1c7fd576addbf5b7b5b2face70d7ca274c3becb3a5ea2e434e0c0aedb98c1e1b996423c0bff409e3ef8509ea1a95241d1b",
    "signer": "0x64B0DA55A684D51d3EF114Fe644eac7db132fDb7",
    "userId": "121304325"
  }
}