{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5464",
    "entityType": "User",
    "nonce": "0xe498576c7fc8830fc281c27cce6098f3c9d6fa13bde1bc51e1aa3a714894cdf5",
    "signature": "0xbe0b6d30bf81aebe09da32646f1917a440150ad09b063c0e8f6e71f27c398944468d7760441ba5e78d40a435ceb89ca019a1f8867a1f3c353cfa3c9722b769f81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}