{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172178",
    "entityType": "User",
    "nonce": "0xd1858bbc541a2462971cf26da3505c27195f745cb63fd6220018164ea4995d57",
    "signature": "0xf0b1a9127e63689721d9536efc08b0be02f0e3cbdaa1f19973ecb3ac0dbc74dd1b854ab989d5c3ef7517419b944a91bb5a62a07e5048deb347d467501d365ec31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}