{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x284441283f6d9f3a9dd300771d64872ee0d513a52f00c97c1581c10a3616dea9",
    "signature": "0xeb8ca02159a18f8a7d828d4a9e95e84a8cbfe381a81aa2195332950554dde15911aae5c8f97ca849a55cfc1ddebe2eada738fc8e5a59594b88d1deb438766c8c1c",
    "signer": "0x7a1236E0C18Ed0856b81B2616E113DD8ef272198",
    "userId": "649998850"
  }
}