{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2195",
    "entityType": "User",
    "nonce": "0x9e23e23f8e3ecd5f4e11f07b39e58403b88016be605a94eae033107a7703aa72",
    "signature": "0xa27a1b1332615173c51e936076b09a5a516ff1a3cd39d9ffce08787d8ab7cebf3a815c40990c032efcacc887eb68dc3fa9cbab92083d4e7141c85fb28027f8631c",
    "signer": "0x1BF18676e3272039E0bF8f2a021954D13cC10a6F",
    "userId": "839909525"
  }
}