{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19647",
    "entityType": "User",
    "nonce": "0x0e1f60adfe060cba33a5604c6927893647d3193076a2aaeebe0c525db73866cd",
    "signature": "0x54799e133d24662fb79ee908184628371f11805bff905bb7748079eed5e083a474bf415a341268a3e714e155c6ea3892374bfdb5b69755fab8bfba1845ebd0221c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}