{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "777",
    "entityType": "User",
    "nonce": "0x46619e87607ac5fadbfdaafeffbe96eb2fe1af72ae0edf5357b90cfcc7d7eeb7",
    "signature": "0x0884d879f43e5ea6fb26bee93ac1791c66ebc8fbfa30c5e17a8f4c2114edabf16895ebfc60e23147b63581650ea13ad7242cab6f1ab9c13053a0f951f085bff71b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}