{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb503cfdec15747ae97bc236c2bda8e9b55f312449df2497f7addc0234a673260",
    "signature": "0xdd27bc4022a2456529f78d1e9d245e48ba90fda44009e88b5ad094c08c9889de7b03bc18e3eb297afc334cc25880e13f76d799b731558adda0701af0e2bb6ffa1b",
    "signer": "0x6A72813Fa8AA17b1147243997B76e8191475e74a",
    "userId": "958967279"
  }
}