{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c02519b595d69294d52189bab6ae2c64b5f4fbc1d71d80e19484df9d8d17519",
    "signature": "0x48c34d22476bc3d53a539ad2b08a1e5164729dcd446bd8799746d5bdc65ebd8273068809ca77b82f443f7511b1a13c05bda51c27db74c4f9f2ffbfd844fd948d1b",
    "signer": "0xf079dD72A5e7aDa068Bd5C490ea8c018901AB037",
    "userId": "863508406"
  }
}