{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956414",
    "entityType": "User",
    "nonce": "0x2e59b3b1304688ecb62b8d14f09f04691acc1e79c3da2c6428422b1860052231",
    "signature": "0x9b0fb57fb7e296ccc2d5f9b065e6546152e73a84dcdfb4a77a61ddd6b7f36a831dd689a9c4a0141ff09c8f31579db71c7cd5962b900b35a8d4b3663c35aa520e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}