{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x277c55027cf952c6c7d0851771488b82b99f85dc295a76acdba696a37b00afbf",
    "signature": "0xc36c937c59b81c648d8c7becc831a28de444d8f2eb5b441647e1b38f9f70a35336f8a312f2d74d4b0e0c66f6b5d096a9e2e1dc2401777df73dadf5abd36e39be1c",
    "signer": "0x7eF038C132deBf79E9EbeD44590C44BcC95557dF",
    "userId": "447118361"
  }
}