{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x5d1ab03949d01fb9cb78c9d6ee32408da91496ddbef1c087c0c15b4d121b06be",
    "signature": "0x31ca81d295edfc0c411a0e29639c77d6eee2f0afb4d6b34c57fd879393ed9c2e24fd4f6fb2514868de621106ca74c804732ec5855ec7573809c5df36899117741b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}