{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x6cd3d81a8915fe9e5b012afddf5e8e05467c825ecd7309fb9a302040dec30332",
    "signature": "0x4b1781cc89ee66b73b60719ecc2f63cc52c8fa0f2dbe817fb06e9b4ace0a032317471a364e2c38be23c16440470a94dbe6d08148b36d41d64bfa6328f869c1d01c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}