{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53770",
    "entityType": "User",
    "nonce": "0x0c690f87ccc6d77844131be0872e2cc6b2748cbc1e4f482a8e7cc13d6bd3a9b8",
    "signature": "0x28f1e3dc2d723f35579106a6275e954f2b3c9440dc44a6af3b1c3f32cf8ebcc947c8c39d54458e88503e6a88eadf8f197e17eea0d762f6d729fd6c64bfd109b71c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}