{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1937100",
    "entityType": "User",
    "nonce": "0x8f12a4684c6bd9d58b46806c886e0a2363ff68801fe9cd23eb3e07a7ef8a6a31",
    "signature": "0x8c906da6abe56341be6eb04bbcbd3dd48048e45b15dc4d8019523374ccbc65dc1e18bcbf17344f554bb13134d42f704de68f64741dd3a335f4fefbaf2f1ceda31b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}