{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148268",
    "entityType": "User",
    "nonce": "0x4c72358fb1f2a745bcd770110392f475fbeb84432c30d7e7197f9994948e1c75",
    "signature": "0xa3a20dc8161f5721ca591962fed3b90c556a97aff489e9c0d1f480f244f45aa72e56699a3bc2f81da37e3ca5196d050835d4f2f20d18671f79810fe15c612e171b",
    "signer": "0xD183DdcAb93fd06277e2386f1D93E3834CB7b480",
    "userId": "218373883"
  }
}