{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10540",
    "entityType": "User",
    "nonce": "0x1a8b9952b7de993f4540ef3821e74f5a2330188f7ca60cff8c979d7b6302cbee",
    "signature": "0x4bd03bac0456741176b41fabd95156e744b080bdde0e628cc24f35a1c7e5d5084256b520e3e8e75d7078525e1f1fbf68c830576d73c785094406f74ab9c87abd1c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}