{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10564",
    "entityType": "User",
    "nonce": "0x9d197957d06d3660b085c12fc339cae6a7d2b10f759596844d3d9ccb1c0b6bde",
    "signature": "0xe536e055ddec1590aba31ea7ae23e3c944a76f941d14416836c2f054a058f9081b3d39b1d0c0142b8532fe43063ef3c8d421b9907189ee8a409dfa63884e5ce51c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}