{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b60b398d6022936e86664f6f8ff1c9125cf30470315f68e41265366100fee5d",
    "signature": "0x15c04ded4475596d79e4c2c94e6becafb5b9bcb5e40f4aad7d88336c01aba7165901a457c8da5e48e514990f7d923daaf96a0f18138f2ec25ce9058f0e5a356b1b",
    "signer": "0x0aCBe776F193025439CaAAf7e3f4f7D77a63463A",
    "userId": "473952438"
  }
}