{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f1e6d26ed1a7867902e8489a4268cbbd11a3319d3ba55a67f3cb9f535da18b8",
    "signature": "0xbb3b977037a1c191ef5fe91c6f72a01fc4c04c5641e724736c9836fbe4ffd2621b3376c9e57a324eb5a3b7b3e411953f7bd106c19737cd426c852eafdf3fb8171c",
    "signer": "0x683f7BB289A26D8955d39aBd5ce75d055A532bfb",
    "userId": "848223898"
  }
}