{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305415280",
    "entityType": "User",
    "nonce": "0xdc4fd9832075105c52472c581ef3e549ccf0051b06810172954d7c56414b974d",
    "signature": "0xa54d05af30f80562377ebf62e2070b3b4167efc86cbb5d056fc08e9ea7fe21156cd116bd4985b066b692df00f3a6f80899f435dad8f74f8f5763c3d202b89e431b",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}