{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18985",
    "entityType": "User",
    "nonce": "0xc5b4432eae7fefd28504f1e7e3533b51774e3adee37b2876e227ea449adb2c2a",
    "signature": "0x74c201dfc43cd46d359548f360286e0d1a82d71aa75ceda8e7a0daa2f739771c6724157e4b4179d1208e6e1af6a3ce840486b44120dc4a5553ab32f0894211891b",
    "signer": "0x07024945569e5721E4d506B01fB850443CF99F65",
    "userId": "871280797"
  }
}