{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1866428",
    "entityType": "User",
    "nonce": "0x8976f4ac12432d8c69d311c9e1b73ae3830614badbb981f497aa3a218a818c22",
    "signature": "0x95f263f19fdcdbbf710087beb3824c998f343de89a6386f97e623197a535ac855d65390ffb8d4e5b70bc489d52a3e63a10bb31ee12c04d1a448e528ba8747ade1b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}