{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "597816010",
    "entityType": "User",
    "nonce": "0x5f6c362308f04faff70c5f3fd3248a115e7e10bea1a8c31b3334d4a139d571ee",
    "signature": "0xecd1ea8fee2bb9cd7ff07b6362ed738f584d35325884d3460ab1262e66fdf0bf361dc1b00bc88e786e7a390ea1e93b23900b6473897ef49c22585c87b751b93d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}