{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241505",
    "entityType": "User",
    "nonce": "0x90e2d1d928cbc8f3cf0dc76fcba095a786a1bed4736b44123a5f5e98c4cf4413",
    "signature": "0x4a046ddc2fabc3c3ccbfc1fc4c2e0e1567b9d8fb145e615985c85a9de034265c0f1f0e72eec9f4b8854c0068cf72954c75950bb3edf06a18b8d0c70ebc8612f51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}