{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128172",
    "entityType": "User",
    "nonce": "0xaaa3c4ab10dac55814f8121c5d371fdbed14b517901a0fe28f77e2cb7c063445",
    "signature": "0xc8b88109474100bec2e23ac343580dddc10dd06f9dfca4fecebd7d835476594b0cdab7b7b549565897b67bb296a32375518070f6b234b9a2804eb6cc765a899b1c",
    "signer": "0xF83f8804040D884fCBAcD57d4Dbeaa764176F931",
    "userId": "455502808"
  }
}