{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f0879b1d8bc64103748877cfee584564ccc2a6b8dcaa664fbd88956fcc6a243",
    "signature": "0x984f73f30aa635e6ec429bfd22666f7f7a15b87756015896fe746bcc3062ce880029b851cec76e6d6cd05c4479433e99ac518117f2e813f93be973a8b49eecb71c",
    "signer": "0xe4Fb8D533DCd28FC759448A220f4Ee07689D5493",
    "userId": "47862418"
  }
}