{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967323686",
    "entityType": "User",
    "nonce": "0xd4b471482d5a9c615fe5cb581511042e56964291c88372250e7a68b856ad4423",
    "signature": "0xa25d07699d71f1529bb86cc47917f8d0a83bf38e5c8a67bf123eb864941af81f44b2649e71b98e70a0def1994eeb748967372435bb2e112cb2d148d6fa38f49a1c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}