{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "771854065",
    "entityType": "User",
    "nonce": "0xda0c003beeaf5bfbaee8398a30198fd8330775dead7cefb1669d5122c24bf5aa",
    "signature": "0x14a61220c16bd1b047c66f8909b6cfba6c74880fbde348a33c98a55ab88de5a172a66948a5dd4babc2b8ef410f169a52f971b492ad124cf7dfa5b8c63e4bae2e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}