{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0xf9679c0fe5ae00ab17b27a9f8dc44b6e6f385106c51e1091237e2e9b4b4ef54f",
    "signature": "0xe6838516c80ac086bcff803646d648bd2a02d3889a803580367cba602b0e9f00289f20e990a5a9e69ccfef482a83b4128370b2edae3c8eebbc72ff5dfbc1b5841c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}