{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac7dcc3ea211e7e4ea730737f35a72f332b38d1c112bd0fe122d6965e4c23e32",
    "signature": "0x21b30ce76ea54adcb9aafbde7f90eed35eec424c9b6689c1f87906754ee1da910f1db12f80e3ab7a82668487ebaea4787d43199c6f0bf9e11a682bde6aa1b44e1c",
    "signer": "0xdD6193296396c62c3C2D7039319B4CF3b19eF254",
    "userId": "529037719"
  }
}