{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45563517",
    "entityType": "User",
    "nonce": "0xa7fe317cb96e0eb307e95e7fdf76e46bb4fa6000ff8c73d0a6d72a1ab0c45dcf",
    "signature": "0x0ce0827153900afd535d2ec510890360fcccf8bc9bcd505ac79c9ed04ccee88617270fcacbfd2a037abf7bc584e44c32079af29c98591c191de027a5221aeef91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}