{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395617",
    "entityType": "User",
    "nonce": "0xd756c462b0cef3eb38a2fa00cb9eb2061b24eb087cf9ed4f600ec7b41b2a69e1",
    "signature": "0x33a9f98f3ffdd53da332dfdf7e52888f787173838c23473575bcad3ff24d468344a622d675ed26053480cffbb1083b7847fb8ce06d8c1cd230d3804365f8b49b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}