{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x18780c935ca2c68cb9c33e996f26cf949e5678b0af57718d52d5bb4d01fe706e",
    "signature": "0x3a215dc6dac451796d2bc41b54667355124f1643ae3869bae066fb0b660ac0054aa7d87a070031d34eba84118d3e93de6b28a3ffa6213a69795abce7c1c566d01c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}