{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945818227",
    "entityType": "User",
    "nonce": "0x0a158663b11d33e898dc5af6190922e7658018c806e914abad7869c402f92224",
    "signature": "0x8b9c37b3ae7df9a33b62b072e184a19e6e87d9365602c6185a5cfae31b3d3ef8504459801e3eef14aa50f97767f5aaabc655e5d89759313520b64501c7b84fae1b",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}