{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "972435607",
    "entityType": "User",
    "nonce": "0xe96dcf58372720800104d154c0efcf4b389dd014802b998bc8c1e6a76886f602",
    "signature": "0x9cfca5a609d5c1770a61bd9187b67c1b67a43a518258cfb8b45502d685c80014512c2b82424bdfcdf19dd071cb0ca221d3ba8df18c7dee19bbcc872eb29562131c",
    "signer": "0x12fad93DE1Cd70721D562298f2cF5A522082d22D",
    "userId": "41465"
  }
}