{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53144",
    "entityType": "User",
    "nonce": "0x87e4bf4040dd5b7d5fa987f9fceecf9cc9cb7aea0b81dc82fa92d215e4511f61",
    "signature": "0x10b2dd56b635e883d2c0c17d4b7541c9bc456feafea16d0d71555eedd353f52e6e015505b790a2d9e438afbde8f9ef986def3b430f68a4919311a2cb832fd5741c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}