{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf213d69b2fe79e03645a88077a50149de0261d592a7b88a7b4a514ca3648c44d",
    "signature": "0x9a334389105b471e8f3d0c891494ab9b4547bbe9e45b191c235f2f5c7e67f08156cd5c2702ae18ec8e7824c18aba141e88ef0420b197cac490bb70b2f9935c151b",
    "signer": "0x9EA905510E72696d2329a57016aC8e69a07C2f51",
    "userId": "341606843"
  }
}