{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xdb377afbb8dc2eecfb0e582afd3af1d988ec707cee5c72ae1d35cf6fce8b540d",
    "signature": "0xf6908ebcf0e2217abe0788fa03888edf2c935f0981718f0b7c3768e703946d844def61e772078964fc9cfdc61ec833e3fac3f492591d2948e1573f3544f66e8d1c",
    "signer": "0x874FC0A92A67F234518D57908dB5282444fb3571",
    "userId": "853740451"
  }
}