{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0x11247d3d1c4b06ce23c19ed2af0e05852381f81477de78c9611c07fc7b04dcb8",
    "signature": "0x6a5cb445bfceea75d8d6f54baa934ca8dfcd0df834c1f538136e517ffe84e25411b6070dde6808f47b25a79c3f1389288b80358926a4e573f006bc34f90557031c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}