{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x325e95f5546d441aa8e20172a11836bd20cc2c06cfa8529a16e548550c0b17e9",
    "signature": "0xb887ffc135c2d9d4f824e0e6cec9c81612fc556a74dd51d29cf02a28d098ad02297c8e55ad935e6afa8ac65f3638d79ff48a8415eea696318c7a204031c7f9c01c",
    "signer": "0x858Be7885D181415aF81b736714608bbff4936d2",
    "userId": "357460890"
  }
}