{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148020",
    "entityType": "User",
    "nonce": "0x0b6967c0682f448457bc2f86c6f34290eea9c5ee6fca7dc8f095e9a95e950514",
    "signature": "0x7f21118055bd160686bff280f9550553a4bc86738592dfaf63d17741370c1412572273cd07ee5b3356faca27c932956a3c605665cf7779b61cc92888a0aec7611b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}