{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xa6c2163bb599d8c7c33d31abccaa709c0d21b6e873dc63b1c62d76f50f1be7c0",
    "signature": "0x0585e8dac84b9f6b409be5f602c6abd87f57eca8f7385ab1b8cd24682201e4a949134f403c2257d434ec87a624fac15d2b60ba2db8e6242a9cbb351de8acdbf71b",
    "signer": "0x87e4380306024d22309CBb70efB443AC8aE372Fa",
    "userId": "308100838"
  }
}