{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5289",
    "entityType": "User",
    "nonce": "0x2d7986701619efc8437db1ed8018a15b1d68050d719c6a366f87789149168067",
    "signature": "0xd03a69035f4ccf030b0bbcf28fde9196ff76ff175fe01d91652211ba2fc90c32654eea7adc8a76dfd031c94a0e8b949c0d7c52fa2e4fd4d1ebc101ff904970821b",
    "signer": "0x76433fcfc10E04743aB4EB98660d4B47526AD243",
    "userId": "328228955"
  }
}