{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28768",
    "entityType": "User",
    "nonce": "0xe75cf06bda00a9e784417e2de8ef30897e590c705cec25670f7b35845feb3ad7",
    "signature": "0xa5795826a2cdabd59122378a17dbe86b1a45a5e9eb67796dfb4e23d92faa931c663c1cddf87fcfae042b0cb9bee0abdc74b9fa4ca5217012da72c18fe014016b1b",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}