{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75996",
    "entityType": "User",
    "nonce": "0xea9cc3edd7ba8ef0dadebf3fb7910b1f93e5ca626b36f225322a510549e35eea",
    "signature": "0x1372714d180c5701262eb799c8b3d74950e578cf2150499c600d696d02c9033a503addcd9edd59b8ec49ecb32b4bf7caf24a3b291c90d76855c47243d432b48c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}