{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355512944",
    "entityType": "User",
    "nonce": "0x0e2556101921a89ed84846692663b0d1b9ea7bb87167a0c5cc82a9dd5d2803ad",
    "signature": "0xdfaa198ab99cc52e3af7a3605676de1a9a0a715df0f81cd53a02eb07df0a9349144b795e6544af7012619598bb3f41a85b7be7729866e6c03bcd0118ac6d96631c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}