{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x38a96a07af45de8aa4cbe091f581ba85037d750eb0421cf258ca63bf1057a29c",
    "signature": "0xa7520af9d3b2d6f17e10ea243b9a10769e4060aeacbfe52a7e9c183c124f34aa5e333c688acf3a10a70f589dc321032d61df542cba515bbd36d060d3234efd6b1b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}