{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136212",
    "entityType": "User",
    "nonce": "0xc0a9e0880aaee22f666c2e2d4f78c15a72be7605489fd6fe116ad3885bb1191d",
    "signature": "0x811fab3c2d073c198f1197c24ec8ef28dd0447a8aaa56fd10c3b700002fa87f07b973ef8dfdc414b46659e786b069fe84e5aa052c43a52b27cde1ae44155710c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}