{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339126",
    "entityType": "User",
    "nonce": "0xc525316b6181af97360e1bbeecfff029d2b2d870b5f0e0fa199360eb9a2f2668",
    "signature": "0x4cbbcf1504919379412b224a3386a68a69cddc080a2b646a16859ce0241ad0a240c37b8af2f77b0da2eb81310d68b9c2472b3683cd5b78de757f9e6dc8c58a761c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}