{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317707",
    "entityType": "User",
    "nonce": "0x75a86adf7cb5bbba703cfd094d25d6d3f287993f6807a680507c46a0d1d5702f",
    "signature": "0xa055708294f8c5cd6880112052cb2395b75e7ea2149b86f2338b9099ed46c67b1e6057de3d4650d25b00eb30f924de291262586c711cb80cfcf6f4c8e287f78a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}