{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511134",
    "entityType": "User",
    "nonce": "0x4e2a93639b08c2e31c3a87f443cd5d1880b094bee04880135296223fb705e8b4",
    "signature": "0x9fbcd25b323d5538a2f17b194b3e6c8b048b505f7c8479e9df4f5f19bb8d80b36b1735ba654d0ffcd63aeb8ebf9895b869492de04d02f46c1660464266d194461b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}