{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xd08d23bfa08900aa19efe543175257a89b1ef76bd4e5de6bddd67e85de37d4f3",
    "signature": "0x4aceeb4e052e810a08364fdcc3ea81c7246603eaef5b44c64c86270f0710a158088c80485f3706d89c3d3cfdabc9d671d7597fcd0140027c788881e6934aa85b1c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}