{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1863",
    "entityType": "User",
    "nonce": "0xf124a05a5f28cdc30843ba3b970a300388d3add48a862e27887d64900aac9325",
    "signature": "0xabd47ba352d3b76de2914fa35e0a0760595a116b57cd800b8acd886d704d0d7074aae98fdd022a982d5254c11cf9a062c9d472b237e26346d03ed131e33cfd011b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}