{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x94c7c13a2a6e52597aae1fd48435c306b652e88b704a116590a1d70826dd0bfe",
    "signature": "0x24c70d1620db61a86fafe95607d8d2df1463b7630ba4d934670d0aff8b5184f552ba2cae4dbaf24d211fb63a0c85fab998b98a0f99256af40e892f9e1bfc8b7c1b",
    "signer": "0x2B5A6e68Fb7ac6848A0b0f0231759EF6D0053E2d",
    "userId": "129688618"
  }
}