{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164276",
    "entityType": "User",
    "nonce": "0x771bd51ca634bd2df97ef4071701053170bbbbcbb388f4de20c580cf75b03136",
    "signature": "0x544513325f7b27320bdf27c7b81fbcedb24bb4bea48f893eb5fb8d02424983a547f447361fd4743caf47541f67d65c5b219d72d2a76e7d07323dd33b639ec0281c",
    "signer": "0x38F50a3556340c9E1365557DD31F3549c0315FB7",
    "userId": "912674314"
  }
}