{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235421",
    "entityType": "User",
    "nonce": "0x4d4e777bd5845675dc4d53fc7b871e0b87aa9bdb30e28561698c87def5934dbf",
    "signature": "0xc02aba7273ae13e9e2b1320d83ddd8a0d3a35b7f1ac059796f78a004dc5186e53dfe744c411381a5159de63aee7998a79cf9cb44e307e7306dc46de3313de2841b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}