{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x7223c58ce4ec787db66fb33fd9c493c886725ac91de1198594d258c18d3dbc43",
    "signature": "0x63b999cf571dad401a44a4d779ea54616c39440e873d3f6e10e71827230ac36079db420c79b8b1488a7b39baa0c9eca5c8684f3f5d663780b6dbf6357f64dce31b",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}