{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0x65008a7ce59db6fb87b574dfa061901fb60ed5010b37eee2805e4fe7132f45b5",
    "signature": "0x1d4a56fe850846804a96a546bcdc8ee02fe4c6e18e6b9a09bc4f488be5dbced05e61811917622e2a754179d7504eae470150cc37bcb9391a9b4a3def474457ea1c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}