{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943956503",
    "entityType": "User",
    "nonce": "0x8dfffb9a0339920a4104082263e48ff6cdd3af264b0540ffa1b00bbb30136923",
    "signature": "0xdeb23e7bae0519d15d85660e574e25d395f6a8af09068512c04f1b43469be3603da9c1c1f03c3658a2a7d6aa193d1abdd0adedb5f250a3092fcde6d0841b18f01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}