{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11fc294701eb1555420b938223beec2de96e5f8767ca532e29bf5bde930ddda9",
    "signature": "0x63a76097a8527df95767cda90646ece93a9f0b83557e7bbac3166df1194d728220cc7afb1750fd24e3be713d0ca86e6ee3accfe6cf8f8daa7497fdebea7838861b",
    "signer": "0xCBb9529c0a5f84F6C4DFF4A8F9a9D27863915e56",
    "userId": "219417572"
  }
}