{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "184514682",
    "entityType": "User",
    "nonce": "0xb731be48fd16de406e01f5c6d89e65df2d1d7d35e945d91f806e7c33f2bea27f",
    "signature": "0xd87455b5cf6921c2cedf3f333d5df12290be387459767fe15ff5487a9a3d50a263c58e8295987c01ab5f705bba086a9b24ab4ea78f9a42e6a9d9a17ff6e8a5141c",
    "signer": "0xD0f51E232A92DDc965FB1FE51d04200D15d10fc1",
    "userId": "536634479"
  }
}