{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196489",
    "entityType": "User",
    "nonce": "0xf778b59b833b940b085c98ea0c568f77471d42f63db162a64793142413fa1421",
    "signature": "0x3ea24b8b01043ee8ff5de8e946ce6b412bfc01db7a2299473dc12d5558e80e394b632b866a8dfb114becfca1981ce7138abb6658e7127296c431f544a33fe4f01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}