{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x292b308e65029dd9c6549119aa597b832ef0c7198cdc7b8172934cc796d285ae",
    "signature": "0x7a089c0dd230a06ddfb4da620442d0baf3785dda4f5695651c89ecf0e6e51ca928355fbdb9c69806bbf67caf916fa48076541be74d4bc6cdc99760b554f485b01c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}