{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13946",
    "entityType": "User",
    "nonce": "0xec15d1c30e0096b472d197242fff0a30a6e1e68ed70d294f2f57365cd8652f45",
    "signature": "0x945a4eb0857d92628e3aab9b2754f4cadd158a8d9e6a5f6bd31534e5ed6c25a16186f41db21862ccd0772b1fb88d7b0cf23079f8edc35f516e7b654957263ecc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}