{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48954",
    "entityType": "User",
    "nonce": "0x393ddde6aa25db038cfdeb071f7c6b07b93932fdaf5aeb70e2a2a60866441c42",
    "signature": "0x6b3fcc32eb757d46a1a3d2e9a5b04755a66e1f94ddc6810979eeed5cdb9ab3666f708f7bd649b0957d6d044451f5f82c2c99fd0d2981a16f97a1e5c3332975cb1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}