{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241110",
    "entityType": "User",
    "nonce": "0xf8c7226b5db8f972f3a9f9ba2c8cdf375266206e3ded4a5095fc7200cb51f584",
    "signature": "0x2b12ed1b798c21d93c34b1be576585b5c13ec7df6ffd15d9e6cf3dac8a7bddc92462f9c12f23def2b3647c98409343810e2b15ebecaa034bd5e6240b52c1aa141c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}