{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "513043095",
    "entityType": "User",
    "nonce": "0x4195a6362160c7b1b3a1f9bc0b338b18449d50aa71e3890c9a9c1c679fda6bcd",
    "signature": "0x08a938787d50cf4d4d79e18607722b6ff94c259c1df63e8cb52fca885017779a276dfaf4dd594104b80a40ced7ea1fbfdebedf42fda3ba82b2cc1152dd525a0b1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}