{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153762",
    "entityType": "User",
    "nonce": "0x363d43de425f651ed8c311a4e1a05b9910d04ab2f1f0ef66851823cb359cd7b9",
    "signature": "0xd715b1f467c2d8e6248ebfbb282072ccba7fcfe7c0fe9b018d73848e14e4761445258339710881c9e1c8687d8e38369f412e08c534842008dfa79e4dbea22f6a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}