{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc62d97622057b6404035ccd6336fc0aa0c691a70959967203e44f99bec8baef4",
    "signature": "0x1588f31bf207d77c3c27335af926920be695ce0c39c42ca9079b7222b0381a541f00172c9a53c19c3b1d361c4d84dabec8aec4760eff63dcf004b6a7927dcbf31c",
    "signer": "0xe2C7aAD01cCe4b90134046027a85D812462c4BA8",
    "userId": "77040140"
  }
}