{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45702",
    "entityType": "User",
    "nonce": "0x8ea175e81de96fb22aaed75414bc2351c55bb9a62c9aca401d3758e0c8bb70de",
    "signature": "0x9907df53b08553ebce45a4f5e629216b4ee76d0fa7771552b8012888c49ea3c05f1d2ec6c9dec27715246551edee91e84e0bc3f19012201cc2dada489e9508001b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}