{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68205a8d49767d9ac173ac522a8c6fa20772de67303708eb6effe154aeeb1f05",
    "signature": "0x2d0815e5feb04b2ba587388c062d0addb10f7b7bc842e259fd6238729f32f23a62a737330b21da65bbda728b78ed438b3f02c563904258c48bbd5efb2225267a1b",
    "signer": "0x0Dc8E810d5dbF6bfD0C9F7390f314166aAe458f5",
    "userId": "811017601"
  }
}