{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172280",
    "entityType": "User",
    "nonce": "0x355962576965b4df3ad0e9d1b65a716e89c99d1a131bdbf58ec0639bd43891cb",
    "signature": "0x0c302ebdce9e824a4136af107e56e5348a0d2706989a6277729063d1d91f68b931288956049fe338f175e18ea483b59b0a6803e599c1d16743546ba2acbf74b81c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}