{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464633468",
    "entityType": "User",
    "nonce": "0xb86ad48c1e142234d4b1d58d0a50917bfa3639820a6cec68cbbe771dad9c74f5",
    "signature": "0xaecfb3cd53bb2e7096906e7c9ad55053a4756e444a5431e15f3aec10b84ef02859b1bd988e371379ce9ccdc39ec8bf9c7f3ad0c2dc6e1f49fcf7ea56e214298b1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}