{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66616fd7122479212b938dfd56fe3f48ba1c70b3bc8f01118892a6176fdd904d",
    "signature": "0x826690760f41d1bf71ae293cc3f549871cbeab489f9402e4089531cd0d7b9ff6662db9289fe44e867de850c338b58c4e33d2049207819d96230a7cf1ac6947bf1b",
    "signer": "0x389fd4E7ae929295698F95Da5D7B993bEd889fCB",
    "userId": "441265820"
  }
}