{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146021",
    "entityType": "User",
    "nonce": "0xf67f871a96a33826e381e320fa4238ca0ebc614f3e517727719c035cc27440a0",
    "signature": "0xb59909aa2432075a2119e3258c46ae65b67d4083d923ef14480bf7b7fb2a59d90ec20878039a188987c933ccd41c8aaadf8dbcafebe894158ef22997fe0f35081c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}