{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27610",
    "entityType": "User",
    "nonce": "0x3cd4c4895289b8dc869d7acb242d1699c83008ec96865a2e8ac0c752d71d8b31",
    "signature": "0x7674f5372191a216457576281688b49d4f2f968bf4c02be952aaa700d18f63a470c66f0d473d2cc0cb92378d972051ee710f98635acf13ae674d5aee3eca145d1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}