{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355844",
    "entityType": "User",
    "nonce": "0x7744d8d0f4daececbbef780c7e81315e65c3dbe146d693c61de355d9ceb1e349",
    "signature": "0x8b2af2117f6fbf7be57d7c46400b20186f87263d3ac1e1deca1e0c05a4b51e8664c448f07d1f24d342adbd8b02b0178ab075e2d2bccd43aa6dbf098ead36a5b11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}