{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102973",
    "entityType": "User",
    "nonce": "0xfd148e9cdb7717804d8314c2efc2380c0df4c476363c416245024eaca3c367fc",
    "signature": "0x038ebff4d46ee4326acac0e43bd05c477648dab80b030857a58afcbf40ff627f77593dcc4d0222fc26ca3ee8c0e39966c9ae2821aaba8050a3cd840ca04b8caf1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}