{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "583112092",
    "entityType": "User",
    "nonce": "0x68c9954c2fba4227a306144e29bb052462a0a31984ad0b3bf1bba635153c71c0",
    "signature": "0x899af8ea983548b710a15404dd94e44f58b4ad4195ff3cf5cffe4356a06c6ae660d9ee6168499a488a3be1045e20a6a7206d34bdb8e3591559b4c347acfaf3ee1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}