{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951995708",
    "entityType": "User",
    "nonce": "0xba2d70b12ad7410fb026c9b2c67725e7316cac6f201959c2665ed8ef6337fb27",
    "signature": "0xf9d0789821e9194da1fbd4fe264f0a8abae4009dfeba4ce25a0cfe0bbdfc24a23076e0bc4c6573271c9c3b82e14c5505752b97e9f46a1d92bafb5ff891f4e5591b",
    "signer": "0xF1e699a7F74d74B9C52c503560E7259d7e1357e4",
    "userId": "502308592"
  }
}