{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "720428",
    "entityType": "User",
    "nonce": "0x4b061a7db1c2b1dbc66400af0a0e5089fb9e76358cb83ab85d0e1d39fb01e223",
    "signature": "0x43d45199953c5fa91cde4dcd28b657b0cb1720c8fff93059169f4d994b3eaa2468c34ea9c9280b8538b000627ccfa9afef7a1af8bbc02675b88f4ce706c8dfca1b",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}