{
  "manageEntity": {
    "action": "Repost",
    "entityId": "643843",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb14a5be789465875f4f291ec3a65bf369b65aff8477dd53b0478d368d35a2af9",
    "signature": "0xa061eec8bcc0d443c8ad03f896ceabcfcb343537a98842e90c764235be6b59d84e648fc69c08b262b4a31c57d8c633f348cb74ed61f4f0de37133549c74fdccb1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}