{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x66c4b41c24d001dfa8f89575a3ee0674174d00d71d02f53e334d19126ac578a3",
    "signature": "0x3833927cb5dcc5c5992dc8c607eca13ab673d8dcdc8d01a1d252a10d546441262095de39bf1b9797dcf66f7e7cb3627363586d5bfc05abad08eefac1f21075b61b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}