{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb20a195f6174c4884c550e5be90ca75f2f5974292df9f7953fb5845db17cfe17",
    "signature": "0xa46a099d551505ec45bcbe29920a987a4eba4e123fb492a659266329e8c6a9460ebb07b201dd536bd895a2f4bc3265c9f66e8163ff72eaffb55cf62228f4a3d91b",
    "signer": "0x8C7Df56F0ee66D94008122eBC90aa6FF2F54242c",
    "userId": "243927361"
  }
}