{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193889654",
    "entityType": "User",
    "nonce": "0x251f1010e70c568860a77550f0066c4cbc69a6d6c0277e7baf7179ec3fe0cc5a",
    "signature": "0xec47ae6f1a329216d6b0673bf84063f0031a68e30ef231711633e4b5ec23bd3b77d2a13b472f451ae6cbfb3c7a7360e99fed4cbe0ffe32a8f278d7b4da843f6b1c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}