{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "853591809",
    "entityType": "User",
    "nonce": "0xcdfdf632750b38b34c4ef9fc5d0b6c796828149155f50380335b71ccf7c4cbd3",
    "signature": "0x2ccc2768ed30f5831f25cc3550b81130d274f2273163567f9650e0474db0f3164f87b4428b6f1549171fb276da14267fdc828628a2de991b72966b65fe4b7d221c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}