{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1863051",
    "entityType": "User",
    "nonce": "0x57c22567e3b58e1e1f43ff11914b44f2bdbc7f1cbe1f8ce4962fea5f4f355f21",
    "signature": "0xc1978b6ecb69e31726fd6b6cba2c9bfe7fa182c11c6aa0dbcaa886866dbf32443582fb82ca47011f8aae079ecb16c376e1969f4581695923bdff6170b5c2eaf71c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}