{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "116503",
    "entityType": "User",
    "nonce": "0x3419109000813a7fee77f32aecb538a11a9024d644f46cbfcc5c786b9e8f949c",
    "signature": "0xd6033a5a73102a59b5e4a2d4017c8e17e60264dd7fed7854917faea39f20ff8b7a57d02dab1c3735eb71787914412c056cf3919e5b3fa1c214ecf74b4f5f693d1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}