{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "470819450",
    "entityType": "User",
    "nonce": "0x1d7b67db74eb89b9a1f273b64940b63dabc2bb8df57b0af73a6a73786b2ce89c",
    "signature": "0x3a4ff3069fe8b17d03ba6e354e80ff915725e0b8399a282e17fa9357674751236357a2e4ff265e7837ab517e2e113a0be78513023b840fe217fca09d1dfd2a2e1c",
    "signer": "0x5b223142a62b282D03fE47a56B10D12AeDEFcDe4",
    "userId": "155681527"
  }
}