{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121458",
    "entityType": "User",
    "nonce": "0x554cd65e73f74224f038ebfabe218158b79e16e9b51dc6eaa5fcc7326fbd1b70",
    "signature": "0xb3daca535cee0b9e03f19067d73b539ed54bd37de617ee45b9338c15183cbbc14904211d924ad437cece92786a3bf5c6517fc4ebaf345d65e4094eb28108562b1b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}