{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9f6ac706b693e4eee604d51bf5ee21aa3fc62c22f0f43ada10e48905636d916",
    "signature": "0x181c62476e61950434dba5c260080d4938652117436d359ce201e6b96a6f89a46bf3296263e6a7b5ee55d6b48921c1759011b0bb3a023ccb7fc3b07acb6613fe1b",
    "signer": "0x294061181d09E3fA06dD3C5cE735E77E637Bf444",
    "userId": "402461880"
  }
}