{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977881607",
    "entityType": "User",
    "nonce": "0x22620f414a571dd0e72670c2d2ce487071fae5d174a837cc65eb64c59b26cbac",
    "signature": "0x2b7cb21029a4a83a4114ac63b1b698b25a6c77fb43856842ac4b7b85352eb9781f2716c151687bd42ae633ba8c18480bebb069762ffa8f1e5aa86cf5b8dd76931b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}