{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfce9e7f5f0cc92b3e25e3903169193c5a5c47d8dcc309cfe6a99bfd3f64ecf69",
    "signature": "0x7b3967e0a31952b9e027447dd3039c5e83c96c9c46304f3686a54d9f44b9b59d3981d84e7e69626066d03e48abc9d92d5a704e42637256c1c7ef8a3ee2a1fc821b",
    "signer": "0xcc7361DcbA931980C8Fdbf55574087c5f4E27877",
    "userId": "731592863"
  }
}