{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11bc0ab0e982cc76d29ee7776e4bac3d9a16090168593a2c924ab78223ee00a3",
    "signature": "0xb871e8bc83ce3307f0cf16399847d9aee607ae59d376fc12c65fcd40d8f7129b4212b32724983cfb044dbbabb5f1065ae72e46f2c36db93bc7fc946e057e80c71b",
    "signer": "0x0017a20ec4F265018a6A8800dcEb4B26218F8931",
    "userId": "161223215"
  }
}