{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "820486414",
    "entityType": "User",
    "nonce": "0x9014a1dac5beb5f036644678e534309b471cb1a8fe2573c8fb06840026162981",
    "signature": "0xaae4ba6620aa87ab6afe4db43248c4dccce6a73d4c8ecb43abdad9d9f7a928cd30632f816ad71c9c2911bb271dceb48a1bf9fdb003b5c669c9ac2e2fdccd735e1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}