{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b76442ca9c2a6898b28c8208b6f6a2bbe3fa1842b6093c491326ea4d04c731a",
    "signature": "0xc0049debb623953eab82e17c6e2e39b28410cc89e23191cde677f8813081abd62e1ed0aa52e390f01cc7af4af98406d93ffae9557364ab4f3ac0c041580b65691c",
    "signer": "0x5E60F6689395b705fc123728Ef210cf8c083De2B",
    "userId": "252241491"
  }
}