{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5cab6f6b075748be6092b6726d831462286d82ed6599b39771533803b7d23af1",
    "signature": "0x137706b6163b4b581d0e37e4d92f8231d9249c25c46c63dd2f3921c03d63766b08e10d649a7ba4d0448f23df10d459adede985c82ef9e26c8664ba3d6fbbeecd1b",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}