{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307445",
    "entityType": "User",
    "nonce": "0xd7a30df1e6d48f9a311bfc365b9a1bfc18320eaf143591f2b20e050815931719",
    "signature": "0xd567569195e5b1cd5619f6627bec10feb98fd7abc4292fa111f29b9cd32dd7931797b709da0bdce8beea2a33ce6094a326d59fcb493164241e59e7995a8e9d5c1b",
    "signer": "0xe6B662C735e906D92261dfd265f28e8bC62baE01",
    "userId": "1792326"
  }
}