{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103392",
    "entityType": "User",
    "nonce": "0x2169fb3a381bd7967dfac7ec3f07fcc5d5856e5456874c1653cdba5e5f099f1d",
    "signature": "0x3dd473a53be54e3f9b33735dcef370763c46bda66cbd2fbf60a5f3d7fd792e221bd58952b29396b3c27565e5e003f87f802216c2b183fef0b91fbc666a8020d91c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}