{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309924236",
    "entityType": "User",
    "nonce": "0x9e9e3c4d377f4855b0dd3e65ea1b31df58f4fd98d35c994dec97b784c41b0907",
    "signature": "0xb14bd15994601da6cd0be48fe36cd994e0d95440509339fd66285e80a7b10c6135c8821ac9dfb4deb367612dd8b498a8a632ad08f9090ac2615bfcb81ee48c181c",
    "signer": "0xCCA88a6013df58bb68F420Ed2f4a3d2ac0C7405A",
    "userId": "322306"
  }
}