{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0xd7b11c0e3294b1104444804e77cbb26a695bf8603eed8f72c18915a88629f7a0",
    "signature": "0xc7ed61657d05fada0c96d0cbdd21ebda0cad3505801361e139a2fbd8d0245ab1351e0a2b9ec6f759b543be1f10409cb3d0e751ff9e7d79dabeb87f022ecb567e1b",
    "signer": "0x79375D6d575fE2a038916001077f90CbAE12d4A9",
    "userId": "973873678"
  }
}