{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xd9d92ae001a621de95bd08f0ff6eda60e76025129094f45f29ccf156c1ec2ba6",
    "signature": "0xa2cbde0eb0936f70936d33003dd343dfe9533f7a2d28556f7f35fce3a7d5cc6931b2960f8b7b6371e332273ee1b7f48f7ddb860107478fb380b0bd628062039d1b",
    "signer": "0x7a78569646ADa00a4d555F20fA48e9cDb9ef14F5",
    "userId": "333304008"
  }
}