{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220996",
    "entityType": "User",
    "nonce": "0x61acd4e853b7f6a333052bb99ff5b628a2a693a580d13e16c9312fdb9754c4b3",
    "signature": "0x3979ac06c11e1c87d001a7623dfbc696ccf7d2c55bf58a572a61c05fa5f9af3b53f3393fddcf68dbddc562ad9aa6d41a7707d09d22fd86a7abeee07faef604881b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}