{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831798184",
    "entityType": "User",
    "nonce": "0x903a631671ca4a18ad0f8584a0aeeafda346e1db910ac5d5bfac2a4df4b04e19",
    "signature": "0xc610b8b5ccdd5c5cc56c7e2ffe4a334d0197e4c78da1cf3053ad035af09ca69d3406998990919fc5ee88200a17a8a2d855072b8d2158ea0f5b8eb5c65154d3df1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}