{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393509866",
    "entityType": "User",
    "nonce": "0xe59cf10da41a35554bb68ee87f2326485189f5c7ecfacb9ade82f0d1e748d7c4",
    "signature": "0x06dc957cea7cdbcfe901eec40ab10195a594bd359a2e0e846b497e5e5a451e4f35305b708b635bc977a59206c8596e71dd1e4c8c9791060179fd6b53f2a4d9161b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}