{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80378",
    "entityType": "User",
    "nonce": "0xb0eb64b5ef5a63b7780ef7b8fa4f6959e17d3bbd70d13de7a79da7a2cb6647be",
    "signature": "0x2092100155e96f0576f33c6d0c1aa433dec25c847c80e25c8831fe38310183dc3e88369e37ee0c7ec89538d7606bcf41315b40007e38d1964e9732fb77c193d71c",
    "signer": "0xA9507d2878E25885A7375c257746F5fEeAcb09AB",
    "userId": "89625"
  }
}