{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb23a9404aa5dc8cc0866947844aadf07a16665360ce482e4a67dc2388097f3f4",
    "signature": "0x0bae933a0ff2ce0f6ea01309d7df5d723ae535d9d6869107d99ba34a1784ef662b1ee730a013ea200cf867fd9d961451e78ac847f418909340fbbc7813bda8281c",
    "signer": "0x49ea1963bD0698Ba4421742478714fbFa38E0719",
    "userId": "189995856"
  }
}