{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1448933",
    "entityType": "User",
    "nonce": "0x54026b524fe963fa5b5bfe2bbb0ffb95567120e08e40dc24a8013dc77c43dcdf",
    "signature": "0x7ba21508ca1188f9a4a8163f1745f67d1b7adeb86798f3582e64fe5094df1f5e69ab505ac79351adf91e46bfc7c2a90fd129b95348a6a4ab901d08b477d48dd11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}