{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893287807",
    "entityType": "User",
    "nonce": "0x2480767a55911b0f9ac8978fe3e15a756e2f76a420e5fe70ccf8655436e3eb43",
    "signature": "0x60272838fc4f07ecb074d4ad5bec714f5fb73252a554c27fe7b40947dc1130995252feeb251b6ff30f0fd8a1581834aed5969fb52fdb5a2c073ecaff24b9c4591b",
    "signer": "0x2aF04528b05939B9f7F5D99Fd67081660907b6b6",
    "userId": "3541"
  }
}