{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0a30770088835383fc690fcfd87d67617965ac050a8ceba32dd4d62dc6d6c091",
    "signature": "0x92c32f5733076c9d133a309a8ab42c702d3239653190cba5ba7ba657517503d52eb60fd8aa0ffb6969f988b5b141f42d97f6126f3b43698862a26629d4ff25301c",
    "signer": "0xc427607Be5AF266d5cF11c3C68b0350D713D4f70",
    "userId": "514044962"
  }
}