{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "909603442",
    "entityType": "User",
    "nonce": "0x6b7072d207134dc48db618a8c68af70198c8f074457c0a1109dd9ae52f09080c",
    "signature": "0xa3157a8ccae0ff42cdf3a85a0c4387394294a8d19ea311e0521f2664c38e7eff63e961fa4f791080f5f8f07deb0d150d7f7dd7cfd24537e9296572d60f634cf51b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}