{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780083254",
    "entityType": "User",
    "nonce": "0x3855647c162317387f8f4d62e6944da8aadc6ae0837928ce83256382cd7becbb",
    "signature": "0xcaf1440356fc7b046b6b1a29c0969f7caab63389a6bbd46b2410df300482d8de7200be7f2b535f7e07851e89567af433a6590f63cbafc07f44fd5a1aad37e9e91b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}