{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7138421725add486d56d7fdddf9d34b7c7e3e058374b590680df7f11dc29071",
    "signature": "0x8c2e7cb5f6c2f2d163535e41b09029416f96ec1dc277a0880df9322a351e426c79affeab50fe34c9ab9d5123e634b23585c5a6aa76894cc639df662ff0278b121b",
    "signer": "0x6F79753ec45949eADDd3F99F1269E4E61E7A87B7",
    "userId": "565110676"
  }
}