{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1424418",
    "entityType": "User",
    "nonce": "0x5b94f0516058f4586f9c103e998c5ba5a6188a64e96792e48a2f6ec3e5416e4c",
    "signature": "0xc05167055b32fa375ac854511056aa9ea9d15099ff309ce395bb6aea5a8fa2374a8062f8c6dd8ff496ed7fc641a4de0efa5058c2964cccbcc23d23a42d4c4bbb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}