{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "859003355",
    "entityType": "User",
    "nonce": "0x7e4622e82b1d7965ef57df008e460f1240828e461fcf32c8b0d605bd0fcb5dbd",
    "signature": "0x80a84607bfcf075ddf4e3fe8becc7459a5a6f7ade11cef52e25f9c846082ccf85dc8c8b95ddd28edc53399aae25aaadadb14b7a18a2d1bd8cc7fe19bf5703c191c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}