{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5cd22e66468f862232cd98bcae70e62b1670463ce7882298c63f381a1f27b792",
    "signature": "0x39ad40f3d71c3ec05181d862e1a2150f776e4b5c05f65c3d4210077def9ae2c71e2c048e5a184de36251501bba5a5d4e4df2c7966f84df8b36f7d83e11bb91811b",
    "signer": "0x23Ae8E2241d8d34cC28c882B6aF853c0bB4e384D",
    "userId": "355794093"
  }
}