{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125633",
    "entityType": "User",
    "nonce": "0x151c96444059fb37649af140a095679cd8bbca1a8cbcb25911e6316ecd9462ef",
    "signature": "0xd51a807d279fc25b255c76f9e958f626c8deec843d3ad1b44f3f742c5b26e1601b454ed82e9d91e4f7accd0223d3c31495356d789eca61bed2c10150498563641b",
    "signer": "0x3606D196411cfFBc994b5d1fA493b4FE439A15e5",
    "userId": "871511642"
  }
}