{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "160950",
    "entityType": "User",
    "nonce": "0x6f83d47d2c8b9deffe081c8300244f80040b3d85c3a19153bba90e291394c3ea",
    "signature": "0x0640258cb1b288f9a2999313450bc8bdab86469456495d0c3da959e0129c0ea24d3435ed152f76d99dc5895cdec312d4cab11e5ca9e582a1e18944bd1db25e9e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}