{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621509",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x6b25b34c647747b2f63a366f855499e0045257afc34bc78a4700eeef2c52035b",
    "signature": "0x3283a038d3808e3a1958162d4c1aad8149585fad987ceaee22a51bf5a58c62b51dc8f63863a2a0c3a098fd2566835d6b50fb54c8f30ee179d92a3cfca49468c21b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}