{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a5ef00c009a1d6e4cef630455c3d9665f21d8d84c2269ab6d8767fb0023aed7",
    "signature": "0x757bdae6a43ae15ddc6cfffb4e5e055fe756c4f7c48e7382fcaef003238ba6b56d96b3f4f3a742ad958ebabbeb5d7e7347b60634a0bf097781dc0cf113366c691b",
    "signer": "0xA94437F8997AFCd1692d5DF4BB6b6CDCa8Fca180",
    "userId": "25401319"
  }
}