{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c5f7901cc3f3f734d00bb833175e3955a51caac736a520441cdf42887281e88",
    "signature": "0x26660c6e32f42ea3e4b72fce97517c5f01c87d082cc9b21a9b6dd4d34c2c362831897f5af61867e81cee46224dbbb129fded953bcd834e0f6364628f01ccd7851c",
    "signer": "0xC904b74a04E95F05A4CEC153C71EF75FdFFcD5CF",
    "userId": "962203192"
  }
}