{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x13c7a0a4328d109ae6738c4c4d02ff2cff6ff848bd2960c0ad76d0c4bda2c486",
    "signature": "0xa3c9117e4139daaa4766d3ef016167e5c630d69c276eb307f988233a204b8e277c46f121b088c05d57beacccee27b31b7ceb3e74a00fe09abf74231daa112a7d1c",
    "signer": "0x5FCc1F0438515241FDb18a12701ab1d5374C0892",
    "userId": "472377942"
  }
}