{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987199883",
    "entityType": "User",
    "nonce": "0x31e0dd3b3e0a5d4a21876debf6349176cad56f688dd881b5265065cb576e7a7f",
    "signature": "0x86e3d1bd520f6475621dd0c666eabf87fd16cacb36b84ff1bd04288499193d5c47344300bfa935f5194a21cafafbe97ac86bf806dac93ad628ffbea375b12bfb1b",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}