{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171508",
    "entityType": "User",
    "nonce": "0x2ef6083fba6635c5b519e73ccdf14517a7ac81d3a79e8686c19266a3aa3dc1a8",
    "signature": "0x0e955a6266d28d9ba122f18bc6a536112df0988c5bae454a5e692f4e92cc4972077e821e1a6daaad4ed445817f5d1d5dfd8d8c9859848dd9bb7f1912072255071c",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}