{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x4f59977210de33cab65b04b9e3b7e5d57083dfd361c5099ec5f9c947c1100d99",
    "signature": "0xfe0328b488ea836af7759c7d8caae32cc641da7cb76ab7b7b295fa2028a751887543bb7c8b3294a51192378ca7f553a264407d377943e62e5c7354cd3593425b1b",
    "signer": "0x7Fca0754B90893F156B055e62d9ae45AE2dF4686",
    "userId": "308196323"
  }
}