{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaeca460f4c088bc7c558d6a831edc4466e0beed9a86a1e61c45b192168b35405",
    "signature": "0x24138c3cf12eb889e08d0dc0478766668177e2f3d17daefdaf1cb2df5654fca824a64da79384f3b323c936cd38a0c6a281dc548420123dd11cb44d2fc3bf68701b",
    "signer": "0x96631AE8EE332f8b0A00D0Ff2BCFBEb0092b5dfb",
    "userId": "256491722"
  }
}