{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104615",
    "entityType": "User",
    "nonce": "0x1738f972748cee8d416185b730c2893900e30012d12d6e49bdfbfe2522150b34",
    "signature": "0x63c92c2281a434c92bd0bd6f79938852b566ba6afabb3c0f19bc2bf0f67a295218304c79ca2a76e47c11ec9bd22ce89b55e4d9b2e3e5eaa9622c82557ec2f5571b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}