{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf95a32a4593a22f4d45bb29c2352370fdd599407fbbadcb80e81eb3716101c2b",
    "signature": "0xe0a2bf1caccddb755b4019246ca542cdd9ed52b5d52609e63ce07393061fe9062138152cfb0e07eb24a39fba7c6f154ac75916c430f704adf8e6c2631b0716521c",
    "signer": "0x1C8Ef49121BFAdD7711c527BF030A01DD4347251",
    "userId": "67482329"
  }
}