{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "999692142",
    "entityType": "User",
    "nonce": "0xad0c18760a335c748dcb003c30afe93dc7b49a8d86be816c044d20ea00f15116",
    "signature": "0x163503a6b30a2f73c6b55cdefbb176a1da6953f956165e21b78559703f886d940adf5a5c6a10fb40d396e972b1c9e20d2733ac932f0fb776d04b8cad70ba8d6f1c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}