{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x782b44ca1783adc95e05724aa4ce6f1cfc458c7257e3d9ba85c11b2d27eb18d0",
    "signature": "0x5e5f718ccc2c8ee5e7a7cd3226e612f45c14191fb21ac78ec054a751e6c1e815563d151ab62c11bc614331725de6d4801a570727027f91d3ef58ec1c27f6b2c01c",
    "signer": "0xe886CF663F987EeEA6c0F53715116742bcDBDbc2",
    "userId": "737149335"
  }
}