{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4850",
    "entityType": "User",
    "nonce": "0x8dfc7c2c8edc05c1bad91ddc059983a4ef31013151cc627f198ac93baf4f771b",
    "signature": "0xba72f32dd3f0c7ef07950a84d2c1bfb9c332c37ba0f84c160a34679fb19cc6c24e355dbb885cb2076b12adf0a5ef1e9f820b121a80371f52bead533f0799adb81b",
    "signer": "0x5aeCC1AFF37a5BA2FEE40cF4dd6357A86DE23D42",
    "userId": "950958674"
  }
}