{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x54cc289ed3ee7bbaac18f070e08f72db7307591d0502fd22a95118fe847a0d67",
    "signature": "0x5f28e4969ccbee2daf47585e6ca8abe14a5d2ad34557edb0a33675a94cf5dfc36c8c015ea81b42be1dce101b5aa7fc34c26a7e1e93eacf0ebcbfc8ae79d813a91c",
    "signer": "0x9155590b2077494958534d37141721B5Ae481dd3",
    "userId": "586052900"
  }
}