{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0879a8cdb806095829e3bba41e00da86d30d53cbe84350c44f6c7713af009654",
    "signature": "0xbb8e634c108c42db0ae3cdae927c957a8f05216bee3fa1f561ea63359ca7a65d315d47bf286b3672fffd2c90b00d0722d3619723c2e52e3b437610694b0cb3af1b",
    "signer": "0x16700459Dd03293703c2b7c08320CEB60368e4ed",
    "userId": "677931993"
  }
}