{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xa21e02f3dd7c6bded35de82d5d22a3aa0a3b351ec516be614a9604d37f57b423",
    "signature": "0x116fabc32683b2d9115417e37ceb7501f701bcb172f51512f1822bfaa8ee2da8294d3d20ce087d142fda468dffad350e39785f8c3ea9205dc3762de5d932a7fa1b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}