{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "761567",
    "entityType": "User",
    "nonce": "0x0955cb75b12fad936bc25cc16bdf3bbc841d9ac6fdfcc13a2c081e07b95a8fb1",
    "signature": "0x98946c4453d04bdad57dd06e0d4f276eab0ca42661f2b65cecfca8805d47a4c02cd578ecb38b561332c2818dfd4d1b57b65d0888525156174f3885b36fdc05d11c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}