{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3460605",
    "entityType": "User",
    "nonce": "0xd7ca5c32e76673188db6954d2db01211148428f88856241b7b3e46a8504191bf",
    "signature": "0xcc9bbda87294922439f1559ac49f043617c02e0f1c686e89afd3a463ff3f4dd61e5be9e8e2edc9550ab7fb6d9e6091b89a33308da767c887c26e98f0625dbd891c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}