{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x551246e3dd04a6812a7d65421874e1d33dfab95028bed0e0c05fdd3541b84b26",
    "signature": "0xc5569f4e9089cbd6aa39bb6e38504dc97bb6e25270a0ab1f9953aa4457c1a342106417e0487a1a7f099725191152535f9e9028fd9d388f2bded3e8d8921d00251b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}