{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7a5b6fb1864cde0de234f8c4440bbd95cb173fa926dfad06ed48127e6857c71a",
    "signature": "0x94459e7259010992768e77a5ac3b5895ea87150137aa085083008abb1935b02f6fa1f6fb346f60580d41793c3a0110695e0b132211a6c1f93fef84548f9dd2801b",
    "signer": "0x0B8abd82fE2af1Da3824433d0810Bea9F1E152eb",
    "userId": "323295897"
  }
}