{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8adb203a12f2ae12a376737f02ea5997012de4126288708946b67d4501f46a4b",
    "signature": "0xaf1c1c4de572cede9150585746313575b9882dcf0fe518e788c2ea555a0a3d9e0e2b64f998351a6f862afdbd7050fe1bba02d1b7ba4df8f72741c3a86602a2711b",
    "signer": "0xc491DB77847e3156B64923635C177F4519cE81Fd",
    "userId": "410718605"
  }
}