{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xedfe5aa943a0555d98e195867a83b8fa682b662b0d28f1fa39ab81923f427a35",
    "signature": "0xc82dc8f2934dc89f8be44f35230983cb90345e119b5fb339f612cefd88ef21e90dc3fea1c2a2dbefc4bec6abde8f1ab85aa36b43c075b1822f6cb92f7013bd6f1c",
    "signer": "0xA6471Ee9DFE4EC106125Db2A30B377A6598bBc28",
    "userId": "893245689"
  }
}