{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175201368",
    "entityType": "User",
    "nonce": "0x7523027d1aace2236c73bc9df6879d52db760f93145bf92ad6111f49b0a9c1ca",
    "signature": "0xc3d2d21d0277cff36fc58f866591608a08b744950f9884b9fcbf698d1f69a2f2344e239359b7998e7b884bb9aef6dd33b8748812029f3878ae981115c21f32931b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}