{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x7ff9c103e6ac2c707d7676e16b47884ea31c4757b4b45c92ced745f339c2e761",
    "signature": "0x5d080ab1d4bf41b8bb57447ac6296c2856b480828cf8961c60e5eb3951a9c635004c3214ce71d2730e11433b5f51a25cb7606b6aa8a7393ddea69c81d50ba4f81c",
    "signer": "0x4d6701aee41cF386F0f1Dc360F47F200983c6c62",
    "userId": "454478631"
  }
}