{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237121",
    "entityType": "User",
    "nonce": "0x181954208ece9fed99228e4225833ae97804195b3366b85ed188f799ebe23c8b",
    "signature": "0xe281812f0157bda9e5ac80f4c2fa6f797148c1a982c39f05bdf2174dd523fa127f52cc5f60241f3b667336c832359cd733d1867ee2ae6002095ef0a740e9159a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}