{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222370",
    "entityType": "User",
    "nonce": "0xb0e9c2213bb4bd2d3897cb8aded05aeb671e9f5ec83ce12e32665425a27f704a",
    "signature": "0x72f029c4e0524db1d4ceec57f9718b5c07b8712581a12ec8a3555702243893031170a5c2acdad5053fd97573b7590bdd893f65edd0b2f514516b718a39e728861b",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}