{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x07d22d534e2df291e59119577245309f8e973cc9f62da4dffeb1e9802d4f8e36",
    "signature": "0x5f4199071fb91e7d9d88f296a8baaaf26124b5bbe6d1adf7a9bee828dd493f2e12ba60593cba9e4cb0f1e507a7a8760a9774ea4917b79f05d0080c476c003be41b",
    "signer": "0xCf935912401212345CAf723421Edcab4F675a495",
    "userId": "915454181"
  }
}