{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1",
    "entityType": "User",
    "nonce": "0x07478bb1c1b885f498d81c9ca42b474afb7ba6fb2ec5fe7f64c130124b149f08",
    "signature": "0x780a757919c88d4656b950c30bca7972d62686eeda4d3504c39be76692e0e8733c614d69539d3d1fff57dcb7a194090be7139994fce6a98779e74bd967e609731b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}