{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304316",
    "entityType": "User",
    "nonce": "0x1c8713295e8d3d781ea7e75f6b7d9e8a338b23a5c44437e570a9674a7dfb6da7",
    "signature": "0x3d64ca7e86c99b5ef64edafd7fc761fa14fe48b3e3602c7499dc3e8374015c66095ff321d0d862c36c1a4bb03a144fcc3bb89a8763497c6f33ebbd3cc74e63241b",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}