{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae59cc79471d978921dca9e7ccb6bbabdc25085caa95d4bb19f882700981c1ca",
    "signature": "0xd96bc76b6a6161b80225b3bb608e85cc9b2d2c309ec38414349b46e744c2bfac4e0b260c7e56f4df104d5ff2ea1ba46520e059d2e64c7f21c6df187231d41c5f1b",
    "signer": "0x9a1E1cC67A8164332E00C636A0785a7902D2E71A",
    "userId": "690353732"
  }
}