{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53604",
    "entityType": "User",
    "nonce": "0x391db0c42787a89a7768e3188d94b85f7e74313550c10c097c6dc9c724918bb7",
    "signature": "0x6c39e6405ab7112cac0584b7702fcd74b4844622cca0c7d4bee8313816a6a2ce15136d6dde6c3bb5eff8556d02c13d237389f52172439d3a0d405d489ee061161b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}