{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230518",
    "entityType": "User",
    "nonce": "0xf5fdd2c3d29c5a11471ff919815f0111a0f744ebc6a387a801f8c70551d2071c",
    "signature": "0xdcc13d6d476fb86ba4aff9bb757a62fe16af732a1019bed2dcc4e9fb9f4185b7141aff14224f4f078bb47d65c40bdd748c59ef35e4eed7755f5533b07d9374eb1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}