{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191315561",
    "entityType": "User",
    "nonce": "0xda99d31bfb6c67401b61db084c6c3961ec4951cfd336af9bbb9dd18d70382c63",
    "signature": "0x6dbf1299d5330fa97f7173ea0320782de4470d6378064fb35e0f5dcf1b27fd5a6fe150707a240557bc96b545fa862c171c599faf5d6a54893dd2da2c850c12f11b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}