{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdbef5f8fc9c51e8752534c0dd0f986619829f8175f4cc5efa65d4ae409de6590",
    "signature": "0x708311382930ae6074a3f27002c9209ed66245fec6765ad20303809deb07fd1857f112396cd1c7f26dcf72d72da5a50a7cfa75ef37327ccf10f82063dd8c8a801b",
    "signer": "0x89e23b3131f8021785D209119bb2b8380dFc612F",
    "userId": "295703952"
  }
}