{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0770437ba7e23c1371e8d16008e7a588013e60e8c3f101efce81746dad98154c",
    "signature": "0xf692ccb99bc936d1fad180f0e3370d1b6c8e4e7aca9ebbc31e14fccfa029a64a795c09399ef9decf1b6546d0968e69176786e12b268afd2d77003ebdd5ad66341b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}