{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5fda5b83bd3ba211b60d5c72b46e1531c96b602c4f45215c0843afa578f502a6",
    "signature": "0x7edbd8be0eb5cf2e0d6b0f1e14f22b76926dd6570343c7c2d55c3d78e1b5a8a8714fec8641e88141b89801d00b2a83f65e87d3dd0a6dd4aa95f925c7217debe31b",
    "signer": "0x1265314B015c9985CDBDD5e458c4648EE6d6A387",
    "userId": "828737354"
  }
}