{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x5a4a6d6166a803735a6bda889f717dc8155647eab395fef6d686ddd07cef0f1e",
    "signature": "0x057a65a550dacf6d168cdc8125ec7ee32a2c03a0b01733f2685e14132d5f34966e87c9551bd15963b97ad5661ae71c7799d5d51e30c4e4b859ceb274c0c87b1c1c",
    "signer": "0x07024945569e5721E4d506B01fB850443CF99F65",
    "userId": "871280797"
  }
}