{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175017",
    "entityType": "User",
    "nonce": "0x8a0eb1036c5fbc2a86e8af2cf80cc0de81a1cd0b84cf0e94349e1e2ebbe9c5a1",
    "signature": "0x4dae9c1602bea7b87e7e46627dd1a2d4c30b0cb5a1c747857ffeb2185bedf6e238d33840c6156175a17b1ebf3deee8a54b33b6f929a5ec0b8ea1e347d87d8a961c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}