{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x62aee2c0ba0699806fed9cfacba80ac543787cc0b00c5a5dadaa7f5b7dd8806a",
    "signature": "0x2cfe8d3850c983bb34fdab4edaf64cbc92816dd7570d098cda0b97a1fe293ce146a578bdc94f0fdb89f85b947f796f9f2f674bbc821abc06b760f345ef5b53fa1c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}