{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0x2b57a080f0b7fcc41346b8f3d3dd55a06514b155c4e4ade3aec4a96906175de9",
    "signature": "0xcb51bce780f570a3e202496193ac12c3dcb71e9a9011d83489af529a0b6330e95300e5eca885f0472eb84d7e4086c015fad25be8dbec849dcd177040b83a7c421c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}