{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53199",
    "entityType": "User",
    "nonce": "0x25855ed3b1c78ad082768be390ec1376a2b908e67266c7b2d329540f002ee400",
    "signature": "0xcfcb9571b3abd522d6d03535d826a72570ddee389b451fa436a198a4d7ed603b19921c212257b3d82312ae3c42c0225dc8b984a88b57201336a271986fda28761c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}