{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "176462064",
    "entityType": "User",
    "nonce": "0x12cf864b93533d1879051f7c9f7160acc9bc50236aae6d7ba479ba3c31a120a1",
    "signature": "0xbe545144587a26d063b37a273fd0f7540759e7f812fdb49739dea143b63f1ca648cad811d091b4815bc989abbfdc81bdf7787c7b03a581436b2c57d9f039c96e1b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}