{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1440592",
    "entityType": "User",
    "nonce": "0xfff1022cddeb59e84aaa6a45e582df41f3f19cc74e854cd1931e4d451fc7a7bf",
    "signature": "0x097f193875c59246d50fca3f235c21fe98b7c2d869a47e4c7ec626b28cffd7843772ceab38eb1e24b3bb140f35d4f19cb2f7e2692a9b011aeef8d2db4ba0e83c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}