{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1579",
    "entityType": "User",
    "nonce": "0x03cedd239419d4160ef857eb2dbb7eab6e06ddd7b92b3df7b764aae01277e78b",
    "signature": "0xcd2922fc6847eef0743a9a3271acc06812b03ab86c17adbedc6753bbad1ec147725c3ec475f0491b48eb1ee4859df2e6b7a7999968d713f866309ccc69152dfb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}