{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360290",
    "entityType": "User",
    "nonce": "0xb148a00a4767bc20d33432342f56cb9bf59a2a983c8cfff82a35c25fb3e7055a",
    "signature": "0x0a7087736eefc67b28aacdcdc482727622e7f5b5b125e360e4b118fd58872a2a31a952b0f4975cc7cad8d2087869cb9f2e2f8974f3614f51172b7815760c88641c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}