{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12",
    "entityType": "User",
    "nonce": "0xc02cff869425655223b3e189d782a10d9d43c92bf4ab5a7afbfae8486cb325dc",
    "signature": "0xf1d3dd1d654540e7074538411d439836c07fe2a3fe8b39bc2fdc4799746da3c023ccc9f4b0a1d556e4730993b5436e76286df681f175e5cf90fa8940325cf2a51c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}