{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76829893",
    "entityType": "User",
    "nonce": "0x0945801828fd3cac1e81c0980422c92a00d45dca0c46c4224e09060c7eafee60",
    "signature": "0x783e6b92b8ee88ed06e9b93aa927864d2964d68787af31b931d8c1885baf1ba9176c922cef1d83dc5f85a52881926ba819acaab9047e5bc4a4085085a12deb3f1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}