{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a934cda9c799d18097e2ea8365ef0a8541a420659efcaba405679b7817fbba2",
    "signature": "0x6bb76179d0edf899211856033509521dd4c5fe9718c6e16d33379090ddf5b0af453f7eca84cf0abe08e9155b9afbc7a38e6499fede9b06c5e5b19d19122995e81b",
    "signer": "0x2015836691dBE863bb636DAE648B116F66479582",
    "userId": "314820710"
  }
}