{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "70215",
    "entityType": "User",
    "nonce": "0x6123bae5ba57cc1913bc0e5511fca9f31431ef5ecfeb030e5494ce3e2dc9d60b",
    "signature": "0x8828f0b6bdd8c0405a1315a511e3faa00450b21944b31247651af36f18c690ca12f7025031d010aef454912d891ff2039e06be2d6192a6f6babf062f239b04221c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}