{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83964",
    "entityType": "User",
    "nonce": "0xa1580bb2f6caa4bc212da1e54b2c34d8ca7ceda28e24ba5585bd73fb62e2be27",
    "signature": "0xaf764cc5193a7b112b8f0f7a098bf30452d1167f3739b4ec843f53e04f711f73588dc9761113aa86e6dee15f5e3a959e8a435af4de1bf25a5a9a5fcfb660dd191b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}