{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40137",
    "entityType": "User",
    "nonce": "0x9bb2a75460d23018d1d3dbb9b9a35423b313e66a326af4702c4b99673c238983",
    "signature": "0x98d435cb168ff78c0fcd7e66e10bdf9ce0d63e391030493eb9916ec46ced4726071702b53c9b46339c154155ac0fe72dd263fbe6d35772d8f733ec131e33a4f41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}