{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90758",
    "entityType": "User",
    "nonce": "0x2652e620a108c15a8c44a359c7b28f76f8cb181bf1b3f37748496035f3e5e004",
    "signature": "0xb66dc1deaac0ea573c0394c4cedb56bbf215baaf075fcf6d047b12d245fd33b77a036d5a1f2e6157073452eca5f2514b176fdd90f4cf9f7efd1086c7bca375bb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}