{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "800871513",
    "entityType": "User",
    "nonce": "0xf550c2563918fbb57896e488beb9390b593025ddfaf448e81d263a168a44cee0",
    "signature": "0x1505b782671399a4e5ecb780b8973175c34b492a70d77341ff643cbbfc534e656a52ade1b4d015fe34769fb9d4b1abe6f77931cde07320078f4584abed3e3de51c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}