{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "184",
    "entityType": "User",
    "nonce": "0x19dea68b3b4f2561e2bb45798251f5ab643bc842b9cef193dd761dea7a5761ba",
    "signature": "0xd4f54ee72115dde94296d773e358351b43dc22f2b7718b9f5c3403bd063796942fc0e10c96bb6862f70c5db7312c6254adf21ec67fa898aa6100946bbc3dbe211b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}