{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990836999",
    "entityType": "User",
    "nonce": "0xa584335dd202ffa2db1e15f8144f194b5c0bfc50b91fa518a05a2a6c9a554f66",
    "signature": "0x3692ea747f6cc5d5588e3e166cbed5f34d7f3e7718a978413aa9983bf6f3997d55326c1d965e493ea0ddffdaffcd9e74a6c13d25dfa2e2c47fde95f901a442891c",
    "signer": "0x6a79014dac58f1D33D45347A909f9628C2132216",
    "userId": "718119401"
  }
}