{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a54c1d3219008686d8b2dddea35b4050873c3c0ce6b86ed6e925558a67614f6",
    "signature": "0x6cc0de04cb60fb138bac537feb3ecda8cbbd22feed320528dade0db319d8c515524a9cf164f35321a02944576ff905a1977ce604e660cb40462f9cd08461e1891b",
    "signer": "0x7a222723C328029DA6C1cF50A3f36FD95D301261",
    "userId": "595474794"
  }
}