{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81112",
    "entityType": "User",
    "nonce": "0x96980dc7e9f617dcc10f1d1d492e682188b4f88bf3a99de190ae14528f853eb7",
    "signature": "0xe931e882e832bfc094bfe00e9c03adafe0eaa422f0732c946e37007d635484d3207915e997193f47c1d9043b02e54247b422aad3b04d783d9c7a6bec78a3d3201b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}