{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b15659ceb89bcdf411bd0804495ab1f85992614340eb91b6d49884d9a668207",
    "signature": "0x0e725a6e290b20afc96e642e8c682a3ab9518cc44a62deb391e11fe95650f3a117348af097d6baa6c6a75702a0f711be6d7e771ce4cd3cea8815f74aca6a51921b",
    "signer": "0x694ade4153E7A4210918Fb26CB42d477dFaa8B2E",
    "userId": "486994713"
  }
}