{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa6498957c7e45e02fab115e3a8650316e5619ed5922dbe8d0590b9b1f204c29",
    "signature": "0x6c56a6689d01398f19b8297e65867fdf86767d105f476f2ff56d4d514a457a363205127789b69427669fab97a6fb786657b3a6afce3a38c08db035e8f0e8bf1a1b",
    "signer": "0x5162CC8aD5b61EA445bE98377A77750B79c70d48",
    "userId": "317750810"
  }
}