{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463741311",
    "entityType": "User",
    "nonce": "0xf0a1c746880d05acbf12096ec691535de7ce347ad9c1ae5fa79f08f5baed5ddc",
    "signature": "0x7ac0f110399fff07364739eca07f4a166ef3b88a9da40c24d29ced3834aa68cf17610b955826b01e826ccb084e8f629392a370bb96fb064a7fac7c7e23ca91c61b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}