{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49995",
    "entityType": "User",
    "nonce": "0x156d722cc87b72a1588e425e10653fb1fe921174143deb7a1b0fb92b7475adf5",
    "signature": "0xc7ac215f49839c4bf14266bf8df994f8e6358cacf570232a7a9e6fbb6acc0f460a24ff5202ec9b50d3f15c4ddd1d69de664d0cf47b0e2d194baa7542559303c71b",
    "signer": "0x21e530f5EA8E24d2476C3Ff8253D151693719385",
    "userId": "854449345"
  }
}