{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699855727",
    "entityType": "User",
    "nonce": "0x1af299228fc204ccd5e27b05df970c89ce49a4ab50f5825da1b6adac401460eb",
    "signature": "0x9c0bbd14587e550c9801c04e318767ae984b270e3d5e68e27e83d1298507e6175fee483219985e2efb660893769625e5fad2f5b5df1a48b9316eeaae368fea501b",
    "signer": "0x3bF1258fC69C58D6B191B7872B2D087a37900E66",
    "userId": "347062615"
  }
}