{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x1e6ab7c8a1fc184ca83e7b98ade05a174a3b40586ef937b651caafd81df64ea2",
    "signature": "0x7111d7bf6124ddd14ac8c94371de3c3cb8c72e03e20fd7675171290a7cb04b3b3c44268819f03fad83747f19269a5d4e9e0dbff8745c2cbdaf1c661ea3ccb78c1b",
    "signer": "0x4D1242D0da3f49195E59794290Cbfd833cCD04FF",
    "userId": "627952347"
  }
}