{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28d12ce36131232314a0021301ca1517519e199a6e54631d22f5f0f99792cfb3",
    "signature": "0x57e33b1c752b3d4567fc5356244c836d89fd84a4baf5fdb4ee6e0d8c80092c411efb9776a33bbc91313a695ca9f2fa3e8650350b2c69c2a280a825112803cc6b1c",
    "signer": "0xe187E951AbBB4698877D5579EA8cB4edd8726B9A",
    "userId": "116734004"
  }
}