{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "891797130",
    "entityType": "User",
    "nonce": "0x5d793ae669596261cba3ea27ddb6e1cee89b051526030441cc14713eab8608a8",
    "signature": "0x73868978d711b503e1df9d974fcd62589b8df6b8e2c81f374340726c27cce8025f27064f878905653f73446bd2c08fb9a6bac1860b7fa097a681452f133412631b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}