{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x008ec7eb4d1e96ae301ed5c55430b54e498d74fb1407cb52cc0bfe48bea3c0e0",
    "signature": "0x1a47fc47975aa9ff3e2e5190924daa5a4e8c6e618a38b8ee02a2db5b534bab3767183eccf86744bfc7ab2670a0801aeb673baacd401705539fe46f03d3aa82b51b",
    "signer": "0xB809F8bc7a0aa1aE019b311c6E1caA8c46aF672C",
    "userId": "246081773"
  }
}