{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2483",
    "entityType": "User",
    "nonce": "0xa68e19ef0f687770b551489e0395ca1f1624687f6859f4c1fcc1055fcf66a16c",
    "signature": "0x6c9b81562e1a7aae020ba6aeebfcd0506a98e697ab65b7a599fa4abebac4c52c40cfa1ac4eeee6da2812fb1553646e292b73131a3cfe09f1e105bf9632a77e761c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}