{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128415",
    "entityType": "User",
    "nonce": "0x01156cdf6096ddbf1ca1d7ed42e1496c6161b239f55f6bbdf17220032003e8de",
    "signature": "0xa286bc63df2622ca1f6f79cf30d8a3a8b9598de603daecfe93aa6ae0843a85dc4d7f8f490d783d7406af11536f8f6e62bad3d92a1976ddd868791449cbd333a81b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}