{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203159",
    "entityType": "User",
    "nonce": "0xd071d31437a7f3703750109789705786aada79a5be536e2351d8ed0e63958553",
    "signature": "0x8b995bbcda269975cf123e46b12342599008c537239db53f53ca4355b59c3d5d3bddc3d8212593facbfcca305805f6c684eb70e3cb70ecef252a421e81b031e61b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}