{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680645058",
    "entityType": "User",
    "nonce": "0xf7009240b0cde19033effb3fd19fe95a8674d252c5de4d11307c06b13ab8449b",
    "signature": "0x8fec720243508f0c4111bf733d55b578d8a2722f4e19f0003fef0a68fa14eabd11e0fd029841942c3862062237fb5d439aefbf5462ae6e61886940efaea2ce151b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}