{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870782458",
    "entityType": "User",
    "nonce": "0xf9026ce33ddfe1f1a32255f36c4e08399938222dc6d725da39bb3801c52325a5",
    "signature": "0x6b889325f82427d3b893dd4578e295350221253b3c067bc387961d910a74ad642a452f02e464c778589c61aadb79db7602522e9de2346506771d41b5a0ad44851b",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}