{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfee081d2afd93ed664235fa7a5e8c220f8710c70657b0d5903ca6db56c218374",
    "signature": "0xb26594948aa9a7096143a851d94566da3e29f903ef587627ef6e92d9709c0dfb259f5277dc5899909ea6519a7dba12b1479a7ffd1a4f65bf419174e8ebe412fd1b",
    "signer": "0x37C570897bDdEbADcfa9029bc229E9B5ca683b1f",
    "userId": "679231275"
  }
}