{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x346162d0f7323bd57c94b064b686061378c31013430bd22df4f3946ad6fa631b",
    "signature": "0x9d099cbd099dcaf602336337a8baf2347aee5c519cabd4ad4affa581bca296d96033082cb6c8918bc164841a77ebcbaea8415219a4631f04dc4799774c38b4f21c",
    "signer": "0x7FCffbc9FB7516A6453F59c5b9918Ea8A7EB33eb",
    "userId": "502388335"
  }
}