{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "351798",
    "entityType": "User",
    "nonce": "0x2a428ab208f51c4079c5ca02149a6bfff9f0a233ecff70498d308f2eac8bc6e4",
    "signature": "0xf7c0c14812ae91bd79ab1e5dba70b9f003eaded42c064a8e9f90a4d35977e98b149205d22b3b2151e0410917c10e5578a28c956dc0734329b0b195383d4ebaa01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}