{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211459",
    "entityType": "User",
    "nonce": "0x975e33bf59297627eeea0922216cd378ac4ed2ffbb4304c7ee0b5f55a01fabb7",
    "signature": "0x09ba1dd15301596900ee1e330bf05e3f95ad4ab456c4b5d75ca1b2d73e1eafde61a286a2938000696cdd523f9bd3cc133eabc8861888ee29c351b9fe1b0e16bc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}