{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16691",
    "entityType": "User",
    "nonce": "0x08f1888160079615c90002ed60cd47fb00712508ea07e8772a41807832f642d1",
    "signature": "0xb434baf849ae0bd3f5cb0044c180e9556b7a472508ec8da78c57d83722c3c31e4bc6d8d3debbea1eb8e48f4a058bc9a3b9c33e5197908e5a04e7ceeda414bb131b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}