{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6980d529d91a6264574066fff330420a1b23412f9a601b32b1f9f5295249e653",
    "signature": "0xea9b419e957717f387bd70a5dcfb001bda2d63487a0d5a95882889492bbd39ed487f8d372e11b7d25479e6d242e8f2bda99ef712c5466d3cfaf16831f6c54e371b",
    "signer": "0xB081e39f45BA8ceB38DBee1315b1A8f7e126F096",
    "userId": "354864668"
  }
}