{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302827053",
    "entityType": "User",
    "nonce": "0x8f936b753c52932622134b1bdd1d54ae42b5715d90781fe6459391e57523d7c6",
    "signature": "0x29d614ba92177d19a96f2787d32241d0e61e8b75deeb9cbcf0531cdfcb5c626654d914ae65a77f005692bff64d9047e8c3c5b47be11b9f8a246ab989b08dd9521b",
    "signer": "0x9c5e7F56Eaa8b6eBFA8F0e7231898e369d2e0b18",
    "userId": "767121958"
  }
}