{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1ecc7ffcbabe3a986dda791e56eb13f16880436080388667bbc844238c8a293a",
    "signature": "0x97df02cb3eedbbfff509f448e0db9aff65163fcce5c2404a1de41a6f2297eed32bee1647de04e1f4d8cfe3198a15078c45857e0f4eb8bde97cb425467ca7e7ca1c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}