{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328416",
    "entityType": "User",
    "nonce": "0x40efbc9303206524c69fc1022f7ed26eb3fd76d36618cb5a02928c96ffdff1cc",
    "signature": "0x403563846f39716246271aba7da6e5514f3f1ad2e4c1163b23d978a47051719c6e0824c29c0510e799d785f29e86168917671c6a47ecc102e1c155482d1cbb461b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}