{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x6aacded5eb1c1fa8751a7d8d221eda9ff552f4e3a1df96a9ef275a33e0cc5da8",
    "signature": "0xab9edc3fbe7d05a7442f0e5aee58e3465412e144bc83faf8ddff08270a2e93362c43b1eeaff29f1a108435cb60fc763a2b1f93cbcc96762fe5da8174f7ca2ea31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}