{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360560",
    "entityType": "User",
    "nonce": "0x7f16cb1e74c2a85545f2db3fd9383c6ff03a2b6bc85be480c05d853a1f3c91e8",
    "signature": "0xbb623b1f168fe4e7e27ffaa36703ed63c3fbcd88dc647eac25ed9434e33b933358dcc7a171bb322469f0d23d9a18bd8de027d3aec067ae4d2e274ae35831db481b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}