{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105131",
    "entityType": "User",
    "nonce": "0x0dae4d604827da2adb57460815aac3bb2852b006c55d32c9548ea01de976b8dc",
    "signature": "0xa3b31a2f209e21ae02b54b3f0dbbdb0d9711f9ec34854fb2792a9e468b84f7cc3513ba1c2da3bf2c506f297711b7d36a7def9e833468c17b5d9a7ac4fb70432d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}