{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871843764",
    "entityType": "User",
    "nonce": "0x0574d03ec0173377f7a97e11cd6156afa5ffed0a9529690149f664227a4f3fbb",
    "signature": "0x8227b4d6d9ee8e0b726a7949654f324b3ad18d2bcd28c33ad2dcfef3c69eeca22a37a4e799363bf020980ccb0a2aabcda306f691db8c05b8c23c6a9f414403171c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}