{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943839579",
    "entityType": "User",
    "nonce": "0xe61659bbe778376772c700dbef6edc3182da39d4cd59062726122cea268e85b6",
    "signature": "0x416ec14fcf0efea2b35b739138a0dd19dce026ae0d1e7981c1e51843be9d5cef40630f2d123dd548bcd3c5d9ae031a7a08564e722f1cb1a94bab2c616f94763a1b",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}