{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196632465",
    "entityType": "User",
    "nonce": "0x4a85d1b8fc4014d65aef40c99d944438531719c6a6386b7ceee9cce6fed2f2ba",
    "signature": "0x8f4b2d7adf06823acaafff8c6eca2a116b83d284a7513d893ff861706847d38805e1b9feb157945ea630425b7e4d97d464eb24dc8b249166e0eca891c3c024c81c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}