{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29401",
    "entityType": "User",
    "nonce": "0xd685068ab17048c11dcabcb49995ae22e64c6c6976e4c33536f65bbdf6769582",
    "signature": "0xfcf67e5cf6726ff8113020e38be5629e69b26e708e425f12772e93e77e965fef3a7d89511a8c03eb4bf057bf92c2e03e9f22a8e20b010b1fd21648c31f9b35b71c",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}