{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x862f22a5f481761765e48b198725f2580b2707697a11ce02504f09647c2c5964",
    "signature": "0x3cf46874fd01ce6bc676edf6f544da2106e06464bc90daf926272575cf6f7bad26cd4dc266d977e6195bb69d4ea8cc612710bd340ec080fdedf0e0913c334d681c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}