{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987024554",
    "entityType": "User",
    "nonce": "0x6365d8179b6ef65c34811866499ed982d8ea5718610657a32af2825b80904adf",
    "signature": "0x5cdb8aaed9f4ba6d01774389a6e3e3d85a15b1abddeb3c42919343a2b1af2ce77388f3f6b9a18cca120872d6e27ee33b224cd3106e25010e78da4f678822b1b61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}