{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x2a5da88406a1a3b9ac4224f2bed3e10146c9024e5fdd394df3ae2525ed825138",
    "signature": "0x1b2f2e14c93e69df1dff2881b79ba333247703e5e93eef8af3389dd8ee931e9d6dcce80f88489465e619cda82a53e455bebbe96fa9b166c4ce7415170ad114e71c",
    "signer": "0xdd9866f5231155D8450f557CF6216590fAeE2900",
    "userId": "697765896"
  }
}