{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30473",
    "entityType": "User",
    "nonce": "0xa92fdb450c3d17cf3cdcbebe8239b696f681d7d0e1777398974c2ca23daf30a8",
    "signature": "0xc19ec32f83cce41d65f7652939d748c3c999051a36fbbe7c3906249eb876baa91077fd9fc3cc4d0d94295e5f1bfadb98dedf40f39e2a35bab7bda5d9e64125631b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}