{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "122774",
    "entityType": "User",
    "nonce": "0x3834c45d3d0465b88e3f02cac69c81d19a762feaa958d0660963f6a3adb76b12",
    "signature": "0x787349f6f5206b0bfad600fa52440158f0b22a5e120cee6d87be0fa1604c6e1c61bdf9b640a6d58a67d3e2ba6611f3ef3b60e1cf9338f6a904f0f84e036de22e1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}