{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3d3f31f5b0184480f1980bc1f903c29443f1e0e920760adf52fe970e7988dda6",
    "signature": "0x8c0fcc5c9c8632f962a924b7c5e37f4aef1272f17322670ca7b1f47569309d1c22e203d700f38ef8a0d1b67bf6510d695363194297b3db70fba28162596cb36c1c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}