{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1703401",
    "entityType": "User",
    "nonce": "0xac8edf1412fbd21f8f6b256b77d3b8d6d29af7c397cfd120bba2901fcc1fc006",
    "signature": "0x218778005e620d2ea68336a7d80d3413aa2a781fa317351e28060f0a92477ff02bd6c9c012c302d5c90b29a7e0e88c6841fb29a8baf273e08ecf6b2857e084591b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}