{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xff3bc0ef9846c76c57e1eb65d89babb9db6c10d0f4e8a288f238cf8778743e58",
    "signature": "0x2acb5a62a46a4bc0f80106adbed2dd5bdc03a757dc1bf1118eb6b62b0b2221851506e24ae732948d94063a2d913c0dd508e5fe0670f576e95cec83163ea4819c1b",
    "signer": "0x7486D58718dCEaa2583b32Df92595C93021BdC72",
    "userId": "183543320"
  }
}