{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfdbd4f9c4c709d1c95f1576cec831bb9f8c52fcee493d12a9704c94ddafc1c56",
    "signature": "0x7db29c8eb9a9b965c4d5cf939eeb340de17d67dbf4721180ae3f93582066d4ba7b7765c1848d2ff02ec98236209f1792a9caaa044c8c16e1ae6123d3699e14481b",
    "signer": "0x829c2734B41d40dfdDDa7868d4445498F10Cede4",
    "userId": "628148454"
  }
}