{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x217a7cc364172c6d6a9f6d4f96225cb723a441001e356cc5daa9c7f87bbd18a5",
    "signature": "0x27ac693e45f076ac2dfdffcf83cf1b2c905e316a6bd24158dc4091f7ee1ca0a951711fe3898079c2ec46bec7f8443d8ace0027cffd2543c39a3ba690c07757571c",
    "signer": "0x641a7cFCa4f52fA4DFaC2c272908362e7D26250C",
    "userId": "536694439"
  }
}