{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "784583291",
    "entityType": "User",
    "nonce": "0x428265b77254fe4f63ef4786a1890cd9d291eafc410a972bffebb7f3327f764a",
    "signature": "0xadf444deb5381cd7ec045a12494f9b73831c6c48cc7b263e2ed16eba75848cf7747153b3d3dce2ddc6b47e770b376d320dcd6b49ed10a68191f477d7e924a27c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}