{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882719",
    "entityType": "User",
    "nonce": "0x6002606e4ccf01321e2e24c0d033260801b6d5128ef236df97cdaf0e2be84952",
    "signature": "0x751085061b3cf41a2d3a9fe02a98dc4adc0a8920ded0593696623aa6486346012802a3b6b45155e115ac123d386108a8000c7867b164f7099b63944f1e12acb11b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}