{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190353",
    "entityType": "User",
    "nonce": "0xaa4a550c085b563ee60e13082fac2094fe450229d54cb5df0e60d113f2b76cbf",
    "signature": "0x12ea16439e04a9a7158c2d665954c2be2fb13f200a0399cef5ec1bf175ce6afa460a13b8653ddf301a3caf70b4a8e53f8b7acf13e47fe44429c3fcb9c751f6441c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}