{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167557",
    "entityType": "User",
    "nonce": "0x63ea2ba163f760656be9d8b937df7841fd9553c656991ad42d4f6f839eb79ee8",
    "signature": "0xfd88fb0831ed8640411194d5815909bd0179483d261b442f027dec75177930817ef31f9d12985ce8f2aeeb40c77130d9e3a8a088a451300aa755f9dacfcf32391b",
    "signer": "0xC2f75Abe54443BaC80f6e53a97BeB0E4d3a71fF2",
    "userId": "639689916"
  }
}