{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x0e95c98f310e85a8afc9f463541692fff8ab1b5aaa80583f63cc963655953ab3",
    "signature": "0xf3295d544fd490f249b0bec10330755fa35e380a7b3c2c86fb02d0d1e537c73e716e1893c29475b4f32e8318c712dab7160666190dfa87b5a7d5843edcf33f691c",
    "signer": "0x85716762Eec590d7cED7237cd3177cc25FA3f95d",
    "userId": "897051051"
  }
}