{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5413",
    "entityType": "User",
    "nonce": "0x6ca8c32aa284651d408cc9a171f15acc8ad967d15e31bd10e64f52f762c2441c",
    "signature": "0xe20b4c42b3218396ec79bd2a65b88f127173da06558295a3cd2fed89e3f60be252dde0be38b0327d748a1a87c74bdcf9410c73a900c50250236886dfab09c18b1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}