{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341554118",
    "entityType": "User",
    "nonce": "0xd20b300b42c162c138eaab2aba21dbb865ad6495ee79a0b8b1fa343594884a94",
    "signature": "0x4d8f5d0c2772d7c9aa0b6b8ad024fca98a827992bcad7116ff512708e143c6a57d62b8f1c86d6557d016d92cb13c7dac7f6d59217189f6100a4108f77b9eb59e1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}