{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151148",
    "entityType": "User",
    "nonce": "0xd8957bc001191e70b0f69822ee3f6f026d37bd1c2636195c560f98f4c505d953",
    "signature": "0x2dad4047eda5e31f5b11ac8c14feac1a6f6a32bbf740950618351d63016ba3f51e390c56970a42d3a3cfea371b9ee88987af012058f74c10b995cb545215a2b61c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}