{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa9015794ce37abb7674f91bb5c3fb7f02c4ee07fee3804ffe70303b3da4b6011",
    "signature": "0x0812d0747f341b2b7aabea9740b04c154434d9178b79d57c780856771216e9147cc700ee503a4d7e40345c4e151bacc9edebf2164b676c1dbfbf68eedb7427701b",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}