{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387832",
    "entityType": "User",
    "nonce": "0xe9ba04e513912a048a2477a8b9be38dd04fff524a336a27f9c54d8cd9b2d7fab",
    "signature": "0xdf8dcf1a874fcb8637aaa539c3e6b481dfefc0424a0358cd982e7dda66c1cc610173352a3f128f58bef1b53b93feeabe02bbdc90ba0c6f4cbbdd0c9a0d1e09371b",
    "signer": "0x3B446829846E4Dff44d7a596d5B5E2e7F6f2A2F9",
    "userId": "784506004"
  }
}