{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983776406",
    "entityType": "User",
    "nonce": "0x2c2c7ee8ddf958dba4be29e42f3a19f04e0284a8f8ce0d6e77cb61f8a9f3f760",
    "signature": "0x5c193765e9bbe01e0d994f14dc280c23273a7452d01de62bcd505cf7a39f914a69a658ab2dceda0be56141d0e3320e54853d047e61389c6a950b52c3ef0f24381c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}