{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x1a2dfe27bd74245b8d9735db3c55e69fe973bec18bf2c2d392070ae57d361152",
    "signature": "0xb6874d2237e63b15bcf63bc274f01a3be7f092c80cc2bbc87761f54a9eaa97ee67c43b557a6bdc968ec0faca3f50b2938af7ae5f275c883cac0c122343f1fe101b",
    "signer": "0x69F642f1FbaFC3710E919da223b90DC0D5eD7a1e",
    "userId": "748581512"
  }
}