{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180639988",
    "entityType": "User",
    "nonce": "0x64dd71c1fc4281285c6c0e61657c4c4a309e624bf03ae50a53c498a4f79f345b",
    "signature": "0x327d23b8aab1daf7f2675cfd03402b3b856e8490f69cacec4e4116ca93de64e83a1b0766d977a18a4936fa5e3a7d7abc657347ad0181c2a82fa31434eb0f4cd51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}