{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945818227",
    "entityType": "User",
    "nonce": "0x41f13116b6da760f48eb3ffa1abef9fdf3b012c7dc150c7ab68ef008fec37970",
    "signature": "0x6b3d5bdaea6e0c9c3e4fdf0206b44c227da5609d42580c4c55ab18223996336063fc0f5d0d908d30ff95f195b724eb8abed88a18f1d6ff65ca8942e5f19055a21c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}