{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6d9b442f6a999ce730d672006064ea0088adad54ce7948ad3b44476dfb27126d",
    "signature": "0xa04045cbb1c1787606aadf1a7a89ab563cf68432d7a62ba0ce66cbe5a0fa98055774c4fc9a277beaf3f3ec865b139b337739ce977278f06866ed2201e90cd09f1b",
    "signer": "0xfDD86dA2081039B574A1b90e23943c722aB9aad5",
    "userId": "626777695"
  }
}