{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa15c456f454a21ce5a24a483adda1d068327ae33989d66c74e77ecdc020b7771",
    "signature": "0x2793b015a70b46b88cb77426aca2b7a0063543e75ffb7e4d459032ecdfc8670563d88992294df5f80f270060ed26b84c6d24b07ce09969905617becb13812fc71b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}