{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965042984",
    "entityType": "User",
    "nonce": "0x3258ca50e3e48831bbc5a7f21dba60a7fccce5ebd4ed61ea1064aa2f779cc2c0",
    "signature": "0xc4e19487f2d2c3e1b29a47bf4dc02ad785a0a82d74b8a5100eaad7d85a77a526391e8e4e65cb9bb2f737c20c198e988fc88cb936887f92e7efb9d29c0e5f754b1c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}