{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x6724d65abb0ace39ee2608cfdcecaa1b932c91f69067ac461d27790741c0a051",
    "signature": "0xa43f63998d2ee87909a26618e4f1e466f30978a37504adbc4957bd312825a4e44d4fcced960a96fdfb1d34acbd848049d0cabfd0ab3ca77d47dc03a0eb1630731b",
    "signer": "0x168ff3b3F21912D4d676468A80Ee2af0E2F24a59",
    "userId": "124431641"
  }
}