{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "483076312",
    "entityType": "User",
    "nonce": "0x48b6db85947cbec74b8b740b7e6d346f30813eb8203d69fb0360c0237451bccb",
    "signature": "0xd39657c72dfed3f3f7549d44e60c9f27cdbcccd3d9dc6edc75acd953de556cd813965b2a2b2597ce4680e06a9f0608d8380ee4cac229958d0c2bf06e58cb879f1b",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}