{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe8a5d388023cdf9e4f07f25002a4d370af54686c2b6d10ca2b58fdde737822f6",
    "signature": "0xcb2f568dba3d6660645117d413a28d96024fbaa442f5d17306ddb760093e4993429435131188aeba51b781f9d58d88fa0b74d7b0bdd1ddedcc8560b6e94a022b1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}