{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308247",
    "entityType": "User",
    "nonce": "0x11c0727c40aa29768275cf6bb4382c63867b561fd7b870e7593d3d29014a82cc",
    "signature": "0xa737a43f23fed86d4dc80a7b1522b8f2c1b9b5423401b2a22d0dd392c8b8caa630935d5033c42174790c1768869f91d022bafe5389fa9bac33051735f068b7081c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}