{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x95f38dc6c1fcbe729c78d129e82ec9c445587d57fddda6077a610ed0e2e730bc",
    "signature": "0xb693530a5621beeb8009a18bcce9c9e7fc0f0acb34f039d1a63b3db588efcbae393b300e64bdd39038aafaaf4384798f06c4851f59a4398b98fb231d40da4d421c",
    "signer": "0xe78f4db0d7A07c6560894af54fAac97902D8d04b",
    "userId": "406109114"
  }
}