{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "989125449",
    "entityType": "User",
    "nonce": "0x996171fdbcad2faee6472d41a6ee004d1a3193800aac3d6b7289b29bc195ef06",
    "signature": "0x1ed03c68530159f162600519b661ff11e1ec1c18af10bdee2c7cf93286ff4f601c26c69517ebd143506fd8d2ab5385a224f7e36d9db30d383f4fa6f2eb65f6061c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}