{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2005440",
    "entityType": "User",
    "nonce": "0x82aca8b6864fc1c6133440d4f63327993cf604032b7ff34c8737c54d555f91c5",
    "signature": "0x2bdd02498acc1b7547172a8214108ed4ee2c3c78f4d6c7cf7b8e7e02c6f2ecc84d798eb2e718732ca8ad66a29acbab4f5cce09fe56c64bacb60eec2a6546f0571c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}