{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "915404341",
    "entityType": "User",
    "nonce": "0x46bba9e6af16ebde8a4852fba5e718170aae7e8652d1c4eab3faa31e9f3392d3",
    "signature": "0x6148a8ef2e7ad829b15fd2e9b25478323a65f382e846696230f249cf35838a074b8c3c8472fd2bba2a5d3a1c37c9b364bac5ad4f9405b51a517fb147bc8965e11c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}