{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x7b8ca45de342ed16dc7002a75c53a240cb006f9cf5b79068bef5057bd8d22ea2",
    "signature": "0x9657bd20543f032616b296e473b525dfcb76e7d9c4a99b50b636eb3c5b82472b07677780cdd564e087d3ca46d7456122b05a7276308a51afe2385f0e9b2cdce01b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}