{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf68fc95e04741ef983b55a8f496e01e489c4d17f9ca987306d8260c35b722782",
    "signature": "0x392ac08016320936364da86fa5ab1a5d651a1a0fc46263691efc0fd4432fe9e179ca0c867e0ef6665516bf0b4979919b0a30431e535d03eb29dbf8cd7cdcca331b",
    "signer": "0x30B23E8B3dFd043fe6A01e4F11D7eBFEdbcd3846",
    "userId": "808618405"
  }
}