{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "499993712",
    "entityType": "User",
    "nonce": "0x086fe2b3919f2c4bb2234fb9cb924f3dedd0e6c966901b1eb369c4034cae93cc",
    "signature": "0x7140fb02159384ae0142478e023b1b88c5175a3643c30778239780ed2b6a8ee35239cd6c47b3418289de3243c368dc8f311d6f692ef483c35c8686b11e1ca8f71c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}