{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xd2f903cc41b274eff30293146ef96a44f1428ec638c77a4069c0c0661bf45f23",
    "signature": "0x8495bb94882050078b0c2de4dd1b74a3e9f9458e7d98620231620f6533065def651bef0e01557cd08c921e2aa434a49572aaa435df687a2c2a619b4acbc21bac1b",
    "signer": "0xE13A6FCE083A5e5583Fc5b481c0Fb6754F085eC2",
    "userId": "662847056"
  }
}