{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf7ad69aaf8aac5225e637cbbce38c45022a457aa6a3815ab37edd66c70dbbcf",
    "signature": "0x837074f2ffece419dc1cf38d59e3eadcf124ff9e1e4bbcbda73286591288ca7319ade19b0a09d84dafa4d2485bb63c18daf489a117e4c3e61fbc1e7b0e258a8b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}