{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa20bce1a2778c38ac41d4e405888f529c170e3e1facd97953151b67cf885de55",
    "signature": "0xb71f415c8835a067283dbd756be6b68573faa5f0df220dc5fce420ed802da1aa1b2e4ec2b5c972f4c318510710cc6f7a5e542ccd036dfa3b56a90aeb47233f9d1b",
    "signer": "0x785343dcc008938B9B79e332EF016228A546dB33",
    "userId": "383560128"
  }
}