{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "365349",
    "entityType": "User",
    "nonce": "0x199abf41e2ca63b1606b4ff15a120752d954985fcdedfecf444b589fa86de3b3",
    "signature": "0x0bccddf585d4389e4645c10defb3db3eb69f7f226ede62b4a93cd2a4c6c2ef8a5b571e97ffaa224ebd8b0218e87187fbc3471ef85146bc44f66668850ff02ef31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}