{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235412",
    "entityType": "User",
    "nonce": "0x0b7674bdca60c27ce249effe351fd0fe920be2923154b0e9fd58620d45ad3cec",
    "signature": "0xea3a473718adce5c9a27e0e3b204085f3970cdee0ecb33bbc813839ffe7cbc492217afa45cd461da4a1703f0708a7e213c63246aa566116ca3d47dce7f4ad8ca1c",
    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}