{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcb0f563e05d7bd88c03cd5735b76b1dad51a302834b632fa1990769e51d55ca8",
    "signature": "0x5dae3a8acdd62a0f668d961f06260411d0dade1fff959303604bb0251fa1dedb0148b23d58ef82c6b2c351f543f03a5feb89f2e2fcd29ee4b2b3be151ab6e3cd1c",
    "signer": "0xC2cA9dBeB7B4D997Dd2Ac0fF9599A3D25D00d046",
    "userId": "410176920"
  }
}