{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135106",
    "entityType": "User",
    "nonce": "0x2f03f9ec7eb3bbf14ab1ee6cfd277736625da6b0445bbaed5240b26765406af9",
    "signature": "0x0f258d8138f4ef549c91ebf57891c87bf179c0f358e03224e4b0a421c26d5d82770fca356d2562dd5a2add07b3dabf7bf2dbfc77965b2633f4c5c4c4f1a43e2f1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}