{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990579",
    "entityType": "User",
    "nonce": "0x7cc7da10a9e8ebb93716b591ddc98ef8eb1fe23e93fcd56f234c78b721e6c0de",
    "signature": "0xee0abae3b076f98ceb1ce4a8cf2cfc2fcced9228c0991991621cb830abeb19a7239e099aa4b28779b3eb6fdd0f3fea8bf13d46aefd5249b4d76c3e2b94f3a10e1c",
    "signer": "0x76cC992D9091fd0de734053486Da5F376377bfE3",
    "userId": "655330192"
  }
}