{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104",
    "entityType": "User",
    "nonce": "0x2a7422769a8e3ab4ba1d26f27103c13459832ce5a6acc19d3d1596843fa3419c",
    "signature": "0xb8ab9298aa6d4dc58e5bda301c0fd94e489dc8ed8f941e16e05abf59932576361be0ddf5cf7a3fc7b15d449a1bc33f72da66707df36f529c44a85d758755ff131b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}