{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680645058",
    "entityType": "User",
    "nonce": "0x1ed661de1e6062a528d2e80d304fb7ff26710fa405b2c5c8a0142a4bd8070bb5",
    "signature": "0x71e4b859ded130e691799769e4e193e433b15f898228b40b6775263957116c812cde6d57ff8becb098f59c258929d58a4bb6b0b986b7870e974029abdc4a55d91c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}