{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318342535",
    "entityType": "User",
    "nonce": "0x28c628f91c8fbca940acfd87353940996e64a69eea6fd271040df302fd439ca3",
    "signature": "0x6b47da94ff36348d1c37b0f61eea33b7232391466d65b1534bb673e77bde03de316da2a13660e10799e98b7e099185017aa7d4d693b7e0f87fd0776477d3890c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}