{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314016",
    "entityType": "User",
    "nonce": "0x405719e7decc0899ef3c39dcaabab66ce333658c7c84772aa97e34e0467f132f",
    "signature": "0x43a60e19d5ebafb3dcc6ddb28eb65556a7ae16a0c7fb7f0f5d6ecd9aeca77bf847b475322620e9f2f5622547bc1aec23edafbf321bf1f4ad42650815f68ae52d1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}